Temperature Converter

Convert Celsius, Fahrenheit, and Kelvin instantly. Perfect for weather, cooking, science, HVAC settings, and international temperature references.

Examples

Read the weather locally

Convert 72 °F into Celsius.

Temperature
72
From scale
Fahrenheit (°F)
To scale
Celsius (°C)
Converted temperature
22.2222 °C
Conversion
72 F = 22.2222 C

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How It Works

Formula

TF=TC×95+32T_F = T_C \times \frac{9}{5} + 32

TC=(TF32)×59T_C = (T_F - 32) \times \frac{5}{9}

TK=TC+273.15T_K = T_C + 273.15

TC=TK273.15T_C = T_K - 273.15

Variables, symbols and units

TCT_C

Temperature in Celsius(°C)

TFT_F

Temperature in Fahrenheit(°F)

TKT_K

Temperature in Kelvin(K)
Calculation method explained

The calculator first converts the input to Celsius as an internal reference point, then converts from Celsius into the target scale. That is why Celsius, Fahrenheit, and Kelvin all stay consistent.

References and source material

Examples

Read the weather locally72 · Fahrenheit (°F)22.2222 °C

Convert 72 °F into Celsius.

Temperature
72
From scale
Fahrenheit (°F)
To scale
Celsius (°C)
Converted temperature
22.2222 °C
Translate an oven setting180 · Celsius (°C)356 °F

Convert 180 °C into Fahrenheit.

Temperature
180
From scale
Celsius (°C)
To scale
Fahrenheit (°F)
Converted temperature
356 °F
Interpret a lab reading300 · Kelvin (K)26.85 °C

Convert 300 K into Celsius.

Temperature
300
From scale
Kelvin (K)
To scale
Celsius (°C)
Converted temperature
26.85 °C

Frequently Asked Questions

How do I convert Celsius to Fahrenheit?
Multiply Celsius by 9/5 and add 32. For example, 20 °C becomes 68 °F.
What is Kelvin used for?
Kelvin is the SI temperature scale used in science and engineering. It starts at absolute zero and does not use degrees in the unit name.
Can Kelvin be negative?
No. 0 K is absolute zero, the theoretical lowest possible temperature. Anything below that is physically invalid.
Is 98.6 °F the same as 37 °C?
Yes. 98.6 °F converts to 37 °C, which is why it is often used as the classic reference for average body temperature.
Why is temperature conversion not just a simple multiplier?
Because Celsius and Fahrenheit have different zero points as well as different step sizes. Temperature conversion needs both multiplication and an offset.

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