Calculist Calculators

Academic Calculators

• Degree Calculator - Estimate UK honours or integrated master classification using module marks, credits, and stage weighting.
• GPA Calculator - Calculate weighted or unweighted GPA with course credits, grade settings, and target GPA planning.
• Grade Calculator - Calculate weighted assignment grades, target the remaining score needed, and estimate final exam requirements.

Countdowns

Commercial

• Days Until Amazon Prime Big Deal Days - Pick the announced sale date and track time remaining.
• Days Until Black Friday - Live countdown with automatic year rollover and exact remaining time.
• Days Until Boxing Day Sales - Live countdown with automatic year rollover and exact remaining time.
• Days Until Cyber Monday - Live countdown with automatic year rollover and exact remaining time.
• Days Until Giving Tuesday - Live countdown with automatic year rollover and exact remaining time.
• Days Until January Sales - Live countdown with automatic year rollover and exact remaining time.
• Days Until Oktoberfest - Live countdown with automatic year rollover and exact remaining time.
• Days Until Prime Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Singles' Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Small Business Saturday - Live countdown with automatic year rollover and exact remaining time.

Cultural

• Days Until Academy Awards - Pick the Oscars date and track time remaining.
• Days Until Coachella - Pick the festival date and track time remaining.
• Days Until Comic-Con - Pick the convention date and track time remaining.
• Days Until Comic-Con San Diego - Live countdown with automatic year rollover and exact remaining time.
• Days Until Eurovision - Pick the event date and track time remaining.
• Days Until Glastonbury - Pick the festival date and track time remaining.
• Days Until Golden Globes - Pick the event date and track time remaining.
• Days Until Mardi Gras - Live countdown with automatic year rollover and exact remaining time.
• Days Until Met Gala - Pick the event date and track time remaining.
• Days Until Oscars - Pick the Oscars date and track time remaining.
• Days Until Pride Parade - Pick your local parade date and track time remaining.
• Days Until Rio Carnival - Live countdown with automatic year rollover and exact remaining time.
• Days Until Venice Carnival - Pick the carnival date and track time remaining.

Date

• Days Until Date - Pick your month, then browse daily pages like Days Until 1st January with automatic year rollover.

Education

• Days Until A-Level Results Day - Pick the results day date and track the countdown.
• Days Until End of School Year - Pick the final day of school year and track time remaining.
• Days Until First Day of School - Pick your first day of school and track the countdown.
• Days Until GCSE Results Day - Pick the results day date and track the countdown.
• Days Until Graduation - Pick your graduation date and track exact time remaining.
• Days Until Half Term - Pick your half-term date and track time remaining.
• Days Until Last Day of School - Pick your last day of school and track the countdown.
• Days Until Prom Night - Pick your prom date and track the countdown.
• Days Until Results Day - Pick your results day date and track the countdown.
• Days Until School Holidays - Pick your school holidays date and track the countdown.
• Days Until School Starts - Pick your school start date and track time remaining.
• Days Until School Term Starts - Pick your school term start date and track time remaining.
• Days Until University Starts - Pick your university start date and track time remaining.

Financial

• Days Until Contract Ends - Pick your contract end date and track the countdown.
• Days Until Credit Card Payment - Pick your card payment due date and track time remaining.
• Days Until End of Month - Live countdown with automatic year rollover and exact remaining time.
• Days Until End of Year - Live countdown with automatic year rollover and exact remaining time.
• Days Until Insurance Renewal - Pick your insurance renewal date and track the countdown.
• Days Until ISA Allowance Reset - Live countdown with automatic year rollover and exact remaining time.
• Days Until ISA Deadline - Live countdown with automatic year rollover and exact remaining time.
• Days Until Lease Ends - Pick your lease end date and track the countdown.
• Days Until Mortgage Renewal - Pick your mortgage renewal date and track the countdown.
• Days Until Next Payday - Pick your next payday and track time remaining.
• Days Until Payday - Pick your payday and track time remaining.
• Days Until Pension Contribution Deadline - Live countdown with automatic year rollover and exact remaining time.
• Days Until Self Assessment Deadline - Live countdown with automatic year rollover and exact remaining time.
• Days Until Student Loan Payment - Pick your student loan payment date and track time remaining.
• Days Until UK Budget - Pick the announced budget date and track the countdown.
• Days Until UK Financial Year End - Live countdown with automatic year rollover and exact remaining time.
• Days Until UK Tax Year End - Live countdown with automatic year rollover and exact remaining time.
• Days Until UK Tax Year Start - Live countdown with automatic year rollover and exact remaining time.
• Days Until US Federal Budget - Live countdown with automatic year rollover and exact remaining time.
• Days Until US Financial Year End - Live countdown with automatic year rollover and exact remaining time.
• Days Until US Tax Deadline - Live countdown with automatic year rollover and exact remaining time.

Holidays

• Days Until April Fools' Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until August Bank Holiday - Live countdown with automatic year rollover and exact remaining time.
• Days Until Black History Month - Live countdown with automatic year rollover and exact remaining time.
• Days Until Bonfire Night - Live countdown with automatic year rollover and exact remaining time.
• Days Until Boxing Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Cinco de Mayo - Live countdown with automatic year rollover and exact remaining time.
• Days Until Dia de los Muertos - Live countdown with automatic year rollover and exact remaining time.
• Days Until Early May Bank Holiday - Live countdown with automatic year rollover and exact remaining time.
• Days Until Earth Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Father's Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Halloween - Live countdown with automatic year rollover and exact remaining time.
• Days Until International Women's Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Labor Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until May Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Memorial Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Mother's Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until New Year's Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until New Year's Eve - Live countdown with automatic year rollover and exact remaining time.
• Days Until Next Holiday - Live countdown with automatic year rollover and exact remaining time.
• Days Until Pride Month - Live countdown with automatic year rollover and exact remaining time.
• Days Until Spring Bank Holiday - Live countdown with automatic year rollover and exact remaining time.
• Days Until St Patrick's Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Thanksgiving - Live countdown with automatic year rollover and exact remaining time.
• Days Until Valentine's Day - Live countdown with automatic year rollover and exact remaining time.

National

• Days Until ANZAC Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Armistice Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Australia Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Bastille Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Burns Night - Live countdown with automatic year rollover and exact remaining time.
• Days Until Canada Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Columbus Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Commonwealth Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Constitution Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Flag Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until German Unity Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Golden Week - Live countdown with automatic year rollover and exact remaining time.
• Days Until Independence Day - Pick your local Independence Day date and track the countdown.
• Days Until India Independence Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Liberation Day - Pick your local Liberation Day date and track the countdown.
• Days Until Martin Luther King Jr Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until National Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until National Day of Saudi Arabia - Live countdown with automatic year rollover and exact remaining time.
• Days Until Obon Festival - Live countdown with automatic year rollover and exact remaining time.
• Days Until Pakistan Independence Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Presidents Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Remembrance Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Remembrance Sunday - Live countdown with automatic year rollover and exact remaining time.
• Days Until Republic Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until St George's Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until US Independence Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Veterans Day - Live countdown with automatic year rollover and exact remaining time.

Personal

• Days Until Anniversary - Pick an anniversary date and track the countdown.
• Days Until Baby Due Date - Pick a due date for a live pregnancy countdown.
• Days Until Birthday - Pick a date and get a live countdown to a birthday.
• Days Until Christmas Break - Pick your Christmas break start date and track the countdown.
• Days Until Easter Break - Pick your Easter break date and track time remaining.
• Days Until Holiday - Pick a travel date and track a holiday countdown.
• Days Until My Anniversary - Pick your anniversary date and track the countdown.
• Days Until My Birthday - Pick a date and get a live countdown to your birthday.
• Days Until My Holiday - Pick your travel date and track your holiday countdown.
• Days Until My Next Birthday - Pick your next birthday date and track the countdown instantly.
• Days Until Retirement - Pick your retirement date and track time remaining.
• Days Until Summer Break - Pick your summer break start date and track the countdown.
• Days Until Summer Holidays - Pick your summer holiday date and track the countdown.
• Days Until Wedding - Pick your wedding date and track exact time remaining.
• Days Until Winter Break - Pick your winter break start date and track the countdown.

Religious

• Days Until All Saints' Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until All Souls' Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Ascension Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Ash Wednesday - Live countdown with automatic year rollover and exact remaining time.
• Days Until Chinese New Year - Live countdown with automatic year rollover and exact remaining time.
• Days Until Christmas - Live countdown with automatic year rollover and exact remaining time.
• Days Until Christmas Day - Live countdown with automatic year rollover and exact remaining time.
• Days Until Christmas Eve - Live countdown with automatic year rollover and exact remaining time.
• Days Until Corpus Christi - Live countdown with automatic year rollover and exact remaining time.
• Days Until Diwali - Live countdown with automatic year rollover and exact remaining time.
• Days Until Easter - Live countdown with automatic year rollover and exact remaining time.
• Days Until Easter Monday - Live countdown with automatic year rollover and exact remaining time.
• Days Until Eid al-Adha - Live countdown with automatic year rollover and exact remaining time.
• Days Until Eid al-Fitr - Live countdown with automatic year rollover and exact remaining time.
• Days Until Good Friday - Live countdown with automatic year rollover and exact remaining time.
• Days Until Guru Nanak Jayanti - Pick your local observance date and track the countdown.
• Days Until Hanukkah - Live countdown with automatic year rollover and exact remaining time.
• Days Until Holi - Pick your local Holi date and track the countdown.
• Days Until Islamic New Year - Live countdown with automatic year rollover and exact remaining time.
• Days Until Laylat al-Qadr - Live countdown with automatic year rollover and exact remaining time.
• Days Until Maundy Thursday - Live countdown with automatic year rollover and exact remaining time.
• Days Until Mid-Autumn Festival - Live countdown with automatic year rollover and exact remaining time.
• Days Until Navratri - Pick your local Navratri start date and track time remaining.
• Days Until Palm Sunday - Live countdown with automatic year rollover and exact remaining time.
• Days Until Passover - Live countdown with automatic year rollover and exact remaining time.
• Days Until Pentecost - Live countdown with automatic year rollover and exact remaining time.
• Days Until Ramadan - Live countdown with automatic year rollover and exact remaining time.
• Days Until Rosh Hashanah - Live countdown with automatic year rollover and exact remaining time.
• Days Until Shrove Tuesday - Live countdown with automatic year rollover and exact remaining time.
• Days Until Vesak - Pick your local Vesak observance date and track the countdown.
• Days Until Yom Kippur - Live countdown with automatic year rollover and exact remaining time.

Seasonal

• Days Until Autumn - Live countdown with automatic year rollover and exact remaining time.
• Days Until Autumn Equinox - Live countdown with automatic year rollover and exact remaining time.
• Days Until Clocks Go Back - Live countdown with automatic year rollover and exact remaining time.
• Days Until Clocks Go Forward - Live countdown with automatic year rollover and exact remaining time.
• Days Until Daylight Saving Time - Live countdown with automatic year rollover and exact remaining time.
• Days Until First Day of Autumn - Live countdown with automatic year rollover and exact remaining time.
• Days Until First Day of Fall - Live countdown with automatic year rollover and exact remaining time.
• Days Until Hurricane Season - Live countdown with automatic year rollover and exact remaining time.
• Days Until Longest Day of the Year - Live countdown with automatic year rollover and exact remaining time.
• Days Until Monsoon Season - Pick your regional monsoon date and track the countdown.
• Days Until Next Weekend - Live countdown with automatic year rollover and exact remaining time.
• Days Until Shortest Day of the Year - Live countdown with automatic year rollover and exact remaining time.
• Days Until Spring - Live countdown with automatic year rollover and exact remaining time.
• Days Until Spring Equinox - Live countdown with automatic year rollover and exact remaining time.
• Days Until Start of Autumn - Live countdown with automatic year rollover and exact remaining time.
• Days Until Start of Spring - Live countdown with automatic year rollover and exact remaining time.
• Days Until Start of Summer - Live countdown with automatic year rollover and exact remaining time.
• Days Until Start of Winter - Live countdown with automatic year rollover and exact remaining time.
• Days Until Summer - Live countdown with automatic year rollover and exact remaining time.
• Days Until Summer Solstice - Live countdown with automatic year rollover and exact remaining time.
• Days Until Winter - Live countdown with automatic year rollover and exact remaining time.
• Days Until Winter Solstice - Live countdown with automatic year rollover and exact remaining time.

Sporting

• Days Until Australian Open - Live countdown with automatic year rollover and exact remaining time.
• Days Until Champions League Final - Live countdown with automatic year rollover and exact remaining time.
• Days Until Copa America - Pick the tournament start date and track time remaining.
• Days Until Cricket World Cup - Pick the tournament start date and track time remaining.
• Days Until Daytona 500 - Live countdown with automatic year rollover and exact remaining time.
• Days Until European Championship - Pick the tournament start date and track time remaining.
• Days Until FA Cup Final - Live countdown with automatic year rollover and exact remaining time.
• Days Until FIFA World Cup - Pick the tournament start date and track time remaining.
• Days Until Formula 1 Season - Pick the season start date and track time remaining.
• Days Until French Open - Live countdown with automatic year rollover and exact remaining time.
• Days Until IPL Final - Pick the final date and track time remaining.
• Days Until Kentucky Derby - Live countdown with automatic year rollover and exact remaining time.
• Days Until NBA Finals - Pick the series start date and track time remaining.
• Days Until NFL Kickoff - Live countdown with automatic year rollover and exact remaining time.
• Days Until Olympics - Pick the opening date and track the Olympic countdown.
• Days Until Premier League Season - Pick the season start date and track time remaining.
• Days Until Rugby World Cup - Pick the tournament start date and track time remaining.
• Days Until Ryder Cup - Pick the event start date and track time remaining.
• Days Until Super Bowl - Live countdown with automatic year rollover and exact remaining time.
• Days Until The Masters - Live countdown with automatic year rollover and exact remaining time.
• Days Until Tour de France - Live countdown with automatic year rollover and exact remaining time.
• Days Until US Open - Live countdown with automatic year rollover and exact remaining time.
• Days Until Wimbledon Final - Live countdown with automatic year rollover and exact remaining time.

Health & Fitness Calculators

• BMI Calculator - Calculate body mass index using metric or US units with adult category, healthy range, BMI Prime, and Ponderal Index.
• Calorie Calculator - Estimate daily calories for maintenance, fat loss, or gain using validated BMR equations and activity multipliers.

Math Calculators

• Basic Calculator - A fast, accurate basic calculator you can use instantly. It covers everyday arithmetic and runs entirely in your browser.
• Constants Calculator - Constants-focused calculator with pi/e and advanced functions.
• Factorial Calculator - Factorial and expression calculator for integer-heavy tasks.
• Graphing Calculator - Plot multiple functions with real-time pan and zoom, and find intersections numerically in your browser.
• GST Calculator - Apply GST additions and removals instantly with country-based default rates and arithmetic support.
• Log Calculator (Logarithm) - Natural logarithm, base-10 log, and exponential functions.
• Memory Calculator - Calculator with memory controls for repeated operations.
• Percentage Calculator - Percent operations and arithmetic in one keypad.
• Powers Calculator - Squares, cubes, arbitrary powers, and exponent tools.
• Roots Calculator - Square, cube, and y-th root calculations.
• Scientific Calculator - Full-featured scientific calculator for everyday math, trig, logs, and exponents.
• Standard Calculator - Standard calculator with arithmetic, advanced operations, and tax controls.
• TAX Calculator - Apply TAX additions and removals instantly with country-based default rates and arithmetic support.
• Trigonometry Calculator - Trig and inverse trig functions with degree/radian support.
• VAT Calculator - Apply VAT additions and removals instantly with country-based default rates and arithmetic support.

Numeral Calculators

• Ancient Greek Numeral Calculator - Convert Ionic/Milesian numerals and Arabic numbers with automatic validation.
• Babylonian Numeral Calculator - Convert Babylonian base-60 numeral segments and whole numbers with clean place values.
• Egyptian Numeral Calculator - Convert Egyptian numeral symbols and whole numbers in both directions instantly.
• Roman Numeral Calculator - Convert Roman numerals and whole numbers with deterministic formatting and overline support.

Time Calculators

• Age Calculator - Calculate exact age in years, months, and days for any selected reference date.
• Hours Calculator - Calculate hours worked between start and end times, including optional break deduction.
• Time Between Dates - Find exact elapsed time between two date-time values with normalized totals.
• Time Calculator - Add or subtract time durations in days, hours, minutes, and seconds.
• Time Duration Calculator - Calculate precise duration between two timestamps with detailed unit breakdowns.