Percentage Calculator

Calculate a percentage of a number, or find what percent one number is of another. Free percentage calculator for discounts, tips, and stats.

base

rate

Result

30.00

Breakdown

Total With Percent
230.00
Remaining
170.00

About Percentage Calculator

What is percentage calculator?

A percentage calculator solves common math problems instantly. Enter your values and get the answer in seconds without manual calculations.

How to use this calculator

  1. Enter your base number.
  2. Enter your percentage.
  3. Click the "Calculate" button.
  4. View your result instantly — the main result is displayed prominently at the top with a detailed breakdown below it.

When to use this calculator

  • Calculating discounts and sale prices while shopping
  • Computing percentage changes for business or school
  • Determining grades and GPA for academic tracking

How the calculation works

The percentage calculator applies standard mathematical operations to compute your result from base number, percentage.

Frequently Asked Questions

How do I calculate a percentage?▼
To find X% of a number, multiply the number by X divided by 100. To find what percent A is of B, divide A by B and multiply by 100.
What is the difference between percent and percentage points?▼
A change from 10% to 15% is a 5 percentage-point increase, but a 50% relative increase. This calculator deals with simple percentage values.

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