Math calculator

Decimal, Fraction and Percent Converter

Enter a value such as 0.375, 3/8 or 37.5% and receive the simplified equivalent forms.

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No account. Formula and assumptions are shown below.

Calculator inputs

Decimal, fraction and percent details

Formula & disclaimer

Percent = Decimal × 100; Fraction = Decimal expressed as the nearest simplified ratio

View assumptions

Formula reviewCalcs at Hand Editorial TeamVerified 31 August 2026 · automated checks included

Three useful checks, kept deliberately short.

What this result includes

3/8 = 0.375 = 37.5%.

A practical example

3/8: Divide numerator by denominator · Multiply the decimal by 100 · Reduce the fraction with the GCF.

Common input mistake

Repeating or long decimals are approximated with a denominator up to 1,000,000.

Percent = Decimal × 100; Fraction = Decimal expressed as the nearest simplified ratio

Fractions are reduced to the lowest terms.

Keep in mind: Some non-terminating decimal values require a rounded fraction approximation.

Produced byCalcs at Hand Editorial Team

Last formula check31 August 2026

Review methodKnown examples + boundary cases