Percentage Calculator
Calculate percentages, percentage increases, decreases and differences instantly.
% of
Result
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is …% of
X is …% of Y
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→
% change
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How it works
1
Choose a calculation mode
Select from three modes: X% of a number, what percentage X is of Y, or add/subtract a percentage from a base value.
Select from three modes: X% of a number, what percentage X is of Y, or add/subtract a percentage from a base value.
2
Enter your values
Fill in the input fields. Results update live as you type — no submit button needed.
Fill in the input fields. Results update live as you type — no submit button needed.
3
Covers all common scenarios
Calculate tips, discounts, tax amounts, markups, percentage growth, score percentages and more in one tool.
Calculate tips, discounts, tax amounts, markups, percentage growth, score percentages and more in one tool.
4
100% local
All arithmetic runs in your browser. Nothing is sent to a server — fast, private and works offline.
All arithmetic runs in your browser. Nothing is sent to a server — fast, private and works offline.