Convert Fahrenheit to Celsius instantly with the standard formula, common weather and cooking examples, and reverse conversion.
Subtract 32 from the Fahrenheit value, then multiply by 5/9. This page applies the required offset before the scale factor. Enter any number above and the result updates instantly. The calculator keeps additional precision internally and displays a readable result for everyday use.
Fahrenheit is commonly used for U.S. weather and household temperatures. Celsius is used internationally and in most scientific contexts. Cooking temperatures may be approximate because ovens cycle around the selected setting.
Keep extra decimal places until the final step when the value will be used in another calculation. For regulated, engineering, medical or safety-critical work, follow the precision and reference standards required by that application.
Subtract 32 from the Fahrenheit value, then multiply by 5/9. This page applies the required offset before the scale factor.
Yes. Select the reverse option above or use the full category converter for additional units.
Calculation review: Formula and representative examples reviewed October 8, 2026.