Fahrenheit to Celsius Converter
This Fahrenheit to Celsius converter turns a temperature in °F into °C. The page opens in the temperature category with Fahrenheit as the source and Celsius as the target, so entering a value applies °C = (°F − 32) × 5/9 right away: 32 °F = 0 °C, 212 °F = 100 °C, and 98.6 °F = 37 °C. It is useful when reading US weather forecasts, oven settings in American recipes, or hardware specs listed in Fahrenheit. The swap button reverses the direction if you need Celsius to Fahrenheit. Everything runs locally in JavaScript in your browser; no value is uploaded, logged, or stored. The result appears as you type and can be copied with one click.
How to use this tool
Overview
This Fahrenheit to Celsius converter turns a temperature in °F into °C. The page opens in the temperature category with Fahrenheit as the source and Celsius as the target, so entering a value applies °C = (°F − 32) × 5/9 right away: 32 °F = 0 °C, 212 °F = 100 °C, and 98.6 °F = 37 °C. It is useful when reading US weather forecasts, oven settings in American recipes, or hardware specs listed in Fahrenheit. The swap button reverses the direction if you need Celsius to Fahrenheit. Everything runs locally in JavaScript in your browser; no value is uploaded, logged, or stored. The result appears as you type and can be copied with one click.Formula
(°F − 32) × 5/9 = °CFrequently asked questions
What is the formula to convert °F to °C? +
Subtract 32, multiply by 5, then divide by 9: °C = (°F − 32) × 5/9. For example, 68 °F = 20 °C.
Why does −40 appear in both scales? +
Because −40 °C equals −40 °F. It is the single point where the two scales cross.
How accurate is the result? +
The conversion is exact; the displayed number is rounded to a practical number of decimals.
What unit categories does the converter support? +
This tool converts length, weight, temperature, area, volume, speed, time, data storage, and many more categories.
Can I convert between metric and imperial units? +
Yes. Convert freely between metric (km, kg, liters) and imperial (miles, pounds, gallons) systems, and many other unit systems.
How accurate are the conversions? +
All conversions use precise mathematical factors. Results are displayed with up to 10 decimal places for maximum accuracy.
Does it support currency conversion? +
The tool focuses on physical units. For currency conversion with live exchange rates, a dedicated currency tool is recommended.