Use this fahrenheit to celsius converter for quick temperature calculations. Enter any value to see the exact °C result, the conversion formula, and a reference chart for common °F values.
Type any Fahrenheit value in the box — whole numbers, decimals, and negative values all work.
The Celsius result appears instantly — no button needed. Scroll down to see the exact formula used.
Click any card in "Common Conversions" to load that value instantly, or scroll down to see the formula and quick-reference values.
Popular conversion values for quick reference
Common values for quick reference
| Fahrenheit (°F) | Celsius (°C) |
|---|---|
| -40 °F | -40.0 °C |
| -20 °F | -28.888889 °C |
| -10 °F | -23.333333 °C |
| 0 °F | -17.777778 °C |
| 10 °F | -12.222222 °C |
| 20 °F | -6.666667 °C |
| 25 °F | -3.888889 °C |
| 30 °F | -1.111111 °C |
| 32 °F | 0.0 °C |
| 37 °F | 2.777778 °C |
| 40 °F | 4.444444 °C |
| 50 °F | 10.0 °C |
| 60 °F | 15.555556 °C |
| 75 °F | 23.888889 °C |
| 100 °F | 37.777778 °C |
| 150 °F | 65.555556 °C |
| 200 °F | 93.333333 °C |
| 300 °F | 148.888889 °C |
| 400 °F | 204.444444 °C |
| 500 °F | 260.0 °C |
Need an exact value? Use the calculator above — it handles any decimal input with full precision.
The reverse of the top web-conversion — same two anchor points (32°F = 0°C, 212°F = 100°C). US oven presets are the practical test: 325°F = 163°C (low and slow), 350°F = 177°C (standard baking), 375°F = 191°C (biscuits), 400°F = 204°C (roasting), 450°F = 232°C (pizza stone). US home thermostats set in the 68-72°F range (20-22°C).
Temperature is the one conversion nobody memorises well — the °C↔°F formula is affine (not multiplicative), so mental shortcuts break quickly. Real use: US baking recipes in a European oven (a 350°F oven is 177°C, and yes, gas mark 4 rounds to that), medical fevers described in one system read in the other (37.0°C = 98.6°F, baseline), weather-app defaults after moving countries, and lab / science coursework across academic conventions. The formula: °C = (°F − 32) × 5/9.
Weather forecasts use Celsius in most countries but Fahrenheit in the US. Converting fahrenheit to celsius helps you pack the right clothes and plan outdoor activities.
Oven temperatures, candy-making stages, and sous vide recipes are published in both Celsius and Fahrenheit. Accurate conversion prevents undercooking or burning food.
Thermostat settings, AC specifications, and energy efficiency ratings use different temperature scales. Converting fahrenheit to celsius helps you set comfortable indoor temperatures.
Chemical reactions, material properties, and lab protocols often specify temperatures in Kelvin or Celsius. Converting fahrenheit to celsius ensures your experimental conditions are correct.
This converter is designed for the exact fahrenheit to celsius use case, so the page stays focused on the pair you searched for rather than drifting into broad category copy.
Convert this pair when you need to interpret another country’s forecast, local climate, or seasonal planning data.
This is a common kitchen workflow when recipes and ovens use different temperature scales.
Because temperature conversions are not simple ratios, a dedicated calculator is safer than mental math for exact work.
Quick answers about the exact ratio, the manual formula, and the most common situations where this unit pair is used.
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