Everyday Math & Time
Percentages, time, everyday decisions and simple practical calculators.
Tools
Age Calculator
Calculate exact age from a date of birth in years, months, weeks and days with a fast free online age calculator.
Average Calculator
Find the average, total and count for a list of numbers.
Countdown Calculator
Count how many days, hours and minutes remain until a target date and time.
Date Difference Calculator
Find the number of days, weeks, months and years between two dates with a free online date difference calculator.
Elapsed Time Calculator
Add or subtract hours and minutes quickly with a free online elapsed time calculator for schedules and planning.
Fraction Calculator
Add, subtract, multiply and divide fractions online, then view simplified results and decimal equivalents.
Fuel Cost Calculator
Estimate fuel spend from distance, efficiency and fuel price.
GPA Calculator
Estimate GPA from grades and credits with a simple free online GPA calculator using a 4.0 scale.
Hours to Minutes Calculator
Convert hours into minutes instantly with a simple free online converter.
Meeting Cost Calculator
Estimate the cost of a meeting from attendee count, average hourly cost and duration.
Pace Calculator
Calculate average pace per mile or kilometre from distance and time with a free online running pace calculator.
Percentage Calculator
Calculate percentages, percentage increase, decrease and change with a free online percentage calculator.
Percentage Change Calculator
Find the percentage increase or decrease between two values.
Percentage Decrease Calculator
Calculate percentage decrease from an original value to a lower value.
Percentage Increase Calculator
Work out percentage increase between two values instantly.
Pomodoro Productivity Calculator
Estimate focused work time from number of Pomodoro sessions and session length.
Ratio Calculator
Simplify ratios, scale ratios and solve missing values with a free online ratio calculator.
Reading Time Calculator
Estimate reading time from total word count and your reading speed.
Screen Time Cost Calculator
Estimate the monthly opportunity cost of daily screen time using your chosen hourly value.
Sleep Cycle Calculator
Estimate suggested bedtimes from your target wake time and number of sleep cycles.
Speed Calculator
Calculate speed from distance and time with a free online speed calculator for travel, school and sport.
Time Calculator
Add hours and minutes together with a simple online time calculator.
Time Duration Calculator
Calculate the time between two times, including overnight periods, with a free online time duration calculator.
Tip Calculator
Calculate a tip amount and total bill in seconds.
Unit Converter
Convert common length, weight and temperature units quickly online with a free simple unit converter.
Guides
How Fraction Calculations Work
Understand the basic rules for adding, subtracting, multiplying and dividing fractions.
How to Calculate Elapsed Time
Learn how to add, subtract and compare time values quickly.
How to Calculate Pace
Learn how to turn total time and distance into pace per mile or kilometre.
How to Calculate Percentage Increase
Learn the percentage increase formula, see a worked example, and jump into the CalcBeacon calculator.
How to Calculate Ratios
Learn how to simplify ratios and scale them into equivalent ratios.
How to Calculate Speed
Learn the simple speed formula: distance divided by time.