What is 8% of 100?
8 percent of 100 is 8. Try other numbers in the calculator below.
8% of 100
8
How to work out 8% of 100
- Turn the percentage into a decimal: 8 ÷ 100 = 0.08.
- Multiply by the number: 0.08 × 100 = 8.
Mental-math shortcut: Take 10% and subtract 2% (10% minus a fifth of 10%). (1% of 100 is 1, so 8% is 1 × 8 = 8.)
8% of 100 is 8. Eight per cent approximates the sales-tax rate in parts of California, New York and other states, so this is a common "tax on $100" check.
Percentages of 100
8% of other numbers
Method & sources
Pure arithmetic: X% of Y = Y × X ÷ 100. Results are calculated exactly and rounded only for display, so the reference tables and the calculator always agree.
Page last updated: October 1, 2026
Frequently asked questions
What is 8% of 100?
8% of 100 is 8. To get it, divide 8 by 100 to make 0.08, then multiply by 100.
How do you calculate 8 percent of a number?
Convert the percentage to a decimal by dividing by 100 (8% becomes 0.08), then multiply by the number. Shortcut: take 10% and subtract 2% (10% minus a fifth of 10%).
8 is what percent of 100?
8 is 8% of 100 — dividing 8 by 100 and multiplying by 100 gives 8. This is the reverse of the calculation on this page.
Related percentage calculations
Related tools
These free tools pair well with this page — open them in a new tab to finish your workflow.