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Fahrenheit to Celsius Converter

Convert Fahrenheit inputs to Celsius, with Kelvin available for scientific reference.

Formula shown0 inputs definedUpdated Nov 2025By CalcuTotal TeamFree, no sign-up

Quick Summary

Use this when you need:

Translate recipes and oven temps from °F to °C
Convert U.S. weather forecasts into °C for international readers
Prepare lab data logged in °F for calculations in °C or K

You’ll get:Temperature

How this is calculated

Formula:

°C = (°F - 32) × 5/9

In plain language:

Subtract 32 to remove the Fahrenheit offset, then multiply by 5/9 to scale to Celsius. Kelvin sits 273.15 higher than Celsius.

The formula is always visible so you can verify the math and explain your numbers to anyone who asks.

What these terms mean

Temperature

Temperature used in the calculation.

When to use this calculator

Translate recipes and oven temps from °F to °C
Convert U.S. weather forecasts into °C for international readers
Prepare lab data logged in °F for calculations in °C or K

Last updated: November 26, 2025

Fahrenheit to Celsius converter explained

Convert Fahrenheit readings to Celsius in one step. Helpful for recipes, weather feeds, and any hardware that reports in °F while your audience expects °C.

How the conversion works

The two scales differ by both offset and scale:

\text{°C} = (\text{°F} - 32) \times \tfrac{5}{9}

Reverse conversion, if needed:

\text{°F} = \text{°C} \times \tfrac{9}{5} + 32

Kelvin sits 273.15 higher than Celsius:

K = \text{°C} + 273.15

Units and conversions

Scale	Symbol	Relation
Fahrenheit	°F	reference input
Celsius	°C	°C = (°F − 32) × 5/9
Kelvin	K	K = (°F − 32) × 5/9 + 273.15

Worked examples

Baking recipe Given 350 °F oven temp:
$\text{°C} = (350 - 32) \times \tfrac{5}{9} = 176.67\,\text{°C}$
Result: 176.67 °C (often rounded to 177 °C).
Cold morning forecast Given 14 °F:
$\text{°C} = (14 - 32) \times \tfrac{5}{9} = -10.0\,\text{°C}$
Result: -10.0 °C.

Tips and pitfalls

Remember to subtract 32 before scaling; forgetting the offset is the most common mistake.
Use one decimal for weather; whole degrees work for most kitchen use.
Negative Fahrenheit values convert cleanly; the math stays linear across the scale.

References and further reading

Frequently Asked Questions

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Calculator info

Version:: v1.0.0
Last reviewed:: Nov 26, 2025
Sensitivity:: low

Last updated: November 26, 2025

Fahrenheit to Celsius converter explained

Convert Fahrenheit readings to Celsius in one step. Helpful for recipes, weather feeds, and any hardware that reports in °F while your audience expects °C.

How the conversion works

The two scales differ by both offset and scale:

\text{°C} = (\text{°F} - 32) \times \tfrac{5}{9}

Reverse conversion, if needed:

\text{°F} = \text{°C} \times \tfrac{9}{5} + 32

Kelvin sits 273.15 higher than Celsius:

K = \text{°C} + 273.15

Units and conversions

Scale	Symbol	Relation
Fahrenheit	°F	reference input
Celsius	°C	°C = (°F − 32) × 5/9
Kelvin	K	K = (°F − 32) × 5/9 + 273.15

Worked examples

Baking recipe Given 350 °F oven temp:
$\text{°C} = (350 - 32) \times \tfrac{5}{9} = 176.67\,\text{°C}$
Result: 176.67 °C (often rounded to 177 °C).
Cold morning forecast Given 14 °F:
$\text{°C} = (14 - 32) \times \tfrac{5}{9} = -10.0\,\text{°C}$
Result: -10.0 °C.

Tips and pitfalls

Remember to subtract 32 before scaling; forgetting the offset is the most common mistake.
Use one decimal for weather; whole degrees work for most kitchen use.
Negative Fahrenheit values convert cleanly; the math stays linear across the scale.

Quick Summary

Calculator Tool

How this is calculated

What these terms mean

Temperature

When to use this calculator

Fahrenheit to Celsius converter explained

How the conversion works

Units and conversions

Worked examples

Tips and pitfalls

References and further reading

Frequently Asked Questions

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Calculator info

Fahrenheit to Celsius converter explained

How the conversion works

Units and conversions

Worked examples

Tips and pitfalls

References and further reading

Frequently Asked Questions

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