Percentage Calculator
Calculate percentages quickly and accurately. Instantly solve "What is X% of Y?", "X is what percent of Y?", and "X is Y% of what number?" with step-by-step math formulas.
Worked Percentage Examples
Click any example to instantly load it into the calculator.
Related Percentage Tools
Need specialized calculations? Try our dedicated percentage calculators.
Percentage Increase Calculator
Calculate percentage growth between an initial and final number.
Use Calculator →Percentage Decrease Calculator
Calculate percentage reduction between starting and ending values.
Use Calculator →Percentage Difference Calculator
Compare relative percentage difference between two independent numbers.
Use Calculator →Percentage Change Calculator
Measure percentage shift from old value to new value.
Use Calculator →Discount Calculator
Calculate final sale prices and savings after percentage discounts.
Use Calculator →GST Calculator
Calculate Goods and Services Tax inclusive and exclusive amounts.
Use Calculator →VAT Calculator
Calculate Value Added Tax for prices across international tax rates.
Use Calculator →Profit Margin Calculator
Compute gross and net profit margins from revenue and costs.
Use Calculator →Markup Calculator
Calculate percentage markup over cost price to determine retail price.
Use Calculator →Grade Percentage Calculator
Calculate test percentage grades and weighted assignment averages.
Use Calculator →Fraction to Percentage
Convert any fraction (e.g. 3/4) into an exact percentage value.
Use Calculator →Decimal to Percentage
Convert decimal numbers (e.g. 0.75) into percent format (75%).
Use Calculator →How to Use the Percentage Calculator
Select Calculation Mode
Choose Mode 1, 2, or 3 depending on whether you are looking for part, total, or percent.
Type Your Numbers
Enter your values into the X and Y input boxes.
View Instant Results
The exact answer calculates live as you type, along with full step-by-step formulas.
Copy or Swap
Click Copy Result to save the summary or click Swap to invert input numbers.
Percentage Calculator FAQs
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