Home
Tom Utilities

Percentage Calculator

Office Tools

Calculate percentages, proportions and percentage changes instantly.

How to use

Three percentage modes

Calculate X% of Y, find what percent X is of Y, or measure the percent change from X to Y. The result updates as you type.

  1. Choose a mode.
  2. Enter the two numbers.
  3. Read the result and copy it if needed.

Frequently asked questions

Which mode should I use for a discount?

Use X% of Y to get the discount amount, or % change to see the reduction.

How are numbers rounded?

Up to four decimals are shown using your locale's number format.

Related tools

VAT Calculator Add VAT to a net amount or extract VAT from a gross amount. Tip Calculator Calculate the tip, total bill and amount per person when splitting a bill. Loan Calculator Estimate the monthly payment, total interest and total cost of a fixed-rate loan. Text Cleaner Clean up copied text by trimming lines, collapsing repeated spaces and removing empty lines. Remove Line Breaks Turn multi-line text into one paragraph by replacing line breaks with spaces. Add Line Numbers Number every line of a list, script or document for easier reference.