Calculators
Free online calculators for math, business, and everyday calculations. Fast, accurate, no signup.
Percentage Calculator
Calculate percentages instantly. Find what percent one number is of another, percentage increase/decrease, and more.
Use toolAge Calculator
Calculate your exact age in years, months, days, hours, and minutes from your date of birth.
Use toolTip Calculator
Calculate tips and split bills easily. Choose a tip percentage, split between people, and see per-person totals.
Use toolFraction Calculator
Add, subtract, multiply, and divide fractions with step-by-step solutions.
Use toolMargin Calculator
Calculate profit margin, markup percentage, and profit from cost and revenue.
Use toolAverage Calculator
Calculate mean, median, mode, range, sum, and more from a set of numbers.
Use toolDiscount Calculator
Calculate sale prices, savings, and final totals with discount percentage and optional tax.
Use toolSquare Root Calculator
Calculate square roots, cube roots, and nth roots. Shows simplified radical form.
Use toolRatio Calculator
Simplify ratios to lowest terms and solve proportions. Find the missing value in A:B = C:?
Use toolMarkup Calculator
Calculate markup percentage, selling price, and profit from cost. Compare markup vs margin.
Use toolGCF Calculator
Find the greatest common factor (GCF) and least common multiple (LCM) of two or more numbers.
Use toolGPA Calculator
Calculate your Grade Point Average from letter grades and credit hours.
Use toolDate Calculator
Calculate the difference between two dates or add/subtract days from a date.
Use toolHours Calculator
Calculate the hours and minutes between two times.
Use toolTime Card Calculator
Calculate weekly work hours from daily start and end times.
Use toolTime Duration Calculator
Add or subtract hours, minutes, and seconds to calculate total duration.
Use toolCompound Interest Calculator
Calculate compound interest on savings or investments with customizable rates and periods.
Use toolLoan Calculator
Calculate monthly loan payments and view a full amortization schedule.
Use toolSquare Footage Calculator
Calculate the area of rooms and spaces in square feet, square meters, and other units.
Use toolAbout Calculators
These free online calculators handle common math and business calculations: percentages, fractions, averages, margins, markups, discounts, ratios, and more. Each calculator runs entirely in your browser with nothing sent to a server. Results update instantly as you type, with step-by-step breakdowns where helpful. Use them for homework, business planning, shopping, or any quick calculation you need.