Transparent formulas
We show the calculation, assumptions, and values you can change.
Tools that make numbers clear
Calculate better.
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Free tools for everyday calculations and better decisions.
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Calculators available in English
No registration, no spreadsheets, and a clear explanation of every result.
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Road trip cost
Calculate fuel, tolls, additional expenses, total cost, and cost per person.
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Average calculator
Calculate mean, median, sum, minimum, maximum, and range from a list.
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Tip calculator
Calculate the tip, split the bill, and choose a practical rounded payment.
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Fraction simplifier
Simplify fractions or calculate operations with a step-by-step explanation.
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Percentage calculator
Calculate a percentage of a number and what percentage one value is of another.
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Exact age calculator
Find age in years, months, and days and the time until the next birthday.
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Days between dates
Count calendar days, full weeks, inclusive days, and weekdays.
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Hours worked calculator
Subtract breaks and estimate pay for daytime or overnight shifts.
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Discount calculator
Find the final price and exact savings from any percentage discount.
We do not have that calculator in English yet.
View all English calculators
Try percentage, age, dates, hours, discount, travel, average, tip, or fraction.
The idea is simple
Useful numbers, explained clearly.
Instant results
Everything is calculated on your device, without creating an account.
Built for decisions
Beyond the number, we explain what the result means in practice.