What is 70°F in Celsius?
70°F is 21.11°C, a typical comfortable room temperature.
Temperature conversion
Fahrenheit to Celsius converter calculator
Last updated:
To convert Fahrenheit to Celsius, subtract 32 and multiply by 5/9: °C = (°F − 32) × 5/9. Room temperature 70°F equals about 21.1°C; body temperature 98.6°F equals 37°C.
Featured fahrenheit to celsius converter answer
Fahrenheit
-40°F
Celsius converter
-40°C (scales cross here)
Formula: °C = (°F - 32) × 5/9. Open the live calculator to convert any value.
Formula
°C = (°F - 32) × 5/9
The subtraction handles the different zero points (0°F is well below water's freezing point), and the 5/9 factor scales the smaller Fahrenheit degree (180 between freezing and boiling) up to the larger Celsius degree (100 between freezing and boiling).
Common values
| From | To |
|---|---|
| -40°F | -40°C (scales cross here) |
| 0°F | -17.78°C |
| 32°F | 0°C (water freezes) |
| 50°F | 10°C |
| 68°F | 20°C (room temperature) |
| 70°F | 21.11°C |
| 98.6°F | 37°C (body temperature) |
| 100°F | 37.78°C |
| 212°F | 100°C (water boils) |
| 350°F | 176.67°C (oven) |
Background
Despite the US sticking with Fahrenheit for weather and cooking, almost every scientific, medical, and engineering context worldwide reports temperature in Celsius. The kelvin (K), used in physics, is exactly the same size as a Celsius degree, just shifted: 0 K = -273.15°C.
Common use cases
- Translate US weather forecasts into Celsius.
- Convert oven and cooking temperatures from Fahrenheit recipes.
- Check thermostat and HVAC temperatures in metric contexts.
Frequently asked questions
What's the formula to convert F to C?
°C = (°F − 32) × 5/9, or equivalently °C = (°F − 32) / 1.8.
What is 100°F in Celsius?
100°F is 37.78°C, just slightly above normal body temperature.
Quick estimate for Fahrenheit to Celsius?
Subtract 30 and divide by 2. For 70°F: (70 − 30) / 2 = 20°C (actual 21°C). Useful for weather glances; use the exact formula for cooking or precise work.
What temperature is 350°F for baking?
350°F is 176.67°C, usually rounded to 175°C or 180°C in recipes that use Celsius.
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