Math & Percentage Calculators

Calculate percentages quickly.

Calculate the tip amount and total bill for any restaurant or service.

Quickly calculate the sales tax and total price for any purchase.

Calculate the percentage increase or decrease between two numbers.

Calculate the buying power of money over time.

Generate one or more random numbers between any range instantly.

Generate strong, secure passwords instantly.

Convert numbers to Roman numerals and Roman numerals to numbers instantly.

Calculate the fuel cost for any road trip.

Calculate the percentage increase from one value to another.

Calculate the percentage decrease from one value to another.

Calculate the average (mean) of a set of numbers.

Calculate the mean, median, mode, and range of any set of numbers.

Simplify ratios, find equivalent ratios, and solve ratio proportions.

Add, subtract, multiply, and divide fractions.

Calculate any number raised to any power.

Calculate the square footage of any room or space.

Calculate the sale price after a percentage discount.

Calculate average speed, distance, or time.