Clear results without hiding the formula
Cuantalia calculates directly on your device. Every tool includes examples, assumptions, and explanations so you can check the operation and adapt the values to your situation.
All English tools
A calculator for every available task.
Search by name or browse the groups. Every tool works without registration and explains the calculation used.
Travel
Plan a road trip
Estimate the complete cost before you leave.
Everyday math
Percentages, averages, tips, and fractions
Solve frequent calculations and understand every result.
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Percentage calculator
Calculate a percentage of a number and what percentage one value is of another.
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Average calculator
Find the average of 2 or more numbers plus median, sum, count, minimum, maximum, and range.
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Weighted average calculator
Combine values with different weights for grades, prices, scores, or portfolios.
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Tip calculator
Calculate a 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.
Money
Interest and borrowing
Estimate growth and borrowing costs with transparent formulas.
Math & geometry
Ratios, area, and volume
Solve common school, project, and measurement calculations.
Dates and work
Age, date differences, and work time
Measure calendar time and net hours with clear assumptions.
Shopping
Prices and savings
Check a promotion before paying.
We could not find that calculator.
Try percentage, weighted average, loan, compound interest, proportion, area, volume, age, dates, travel, or fractions.
Learn the formulas behind the tools
Average, mean and median
Understand what each measure tells you and why outliers matter.
Percentage basics
Work through parts, changes and reverse-percentage examples.
Trip cost planning
Estimate fuel, tolls and shared costs using common fuel-economy units.
Need a unit conversion?
Use the Cuantalia unit converters for length, weight, temperature, volume, area, pressure, speed and digital storage.