Decimal to Percent Calculator

Worked check

0.125 becomes 12.5% because multiplying by 100 converts the decimal fraction to a rate per hundred. A value such as 1.25 therefore corresponds to 125%, not 1.25%.

Rule: percent = decimal × 100. Move the decimal point two places right: 0.125 → 12.5%. For a final check, estimate the expected size of the answer before copying it, keep units consistent, and round only the displayed result rather than intermediate values. Re-enter one simple case by hand when possible; a result with the wrong sign or order of magnitude usually points to an input or reference-base mistake.