Convert temperatures instantly between Celsius, Fahrenheit, and Kelvin. Use the comfort scale to see where any temperature falls on the human comfort spectrum.
Presets:
°C
—
Celsius
°F
—
Fahrenheit
K
—
Kelvin
Comfort Scale
-20°C0°C20°C40°C60°C+
°F = (°C × 9/5) + 32 · K = °C + 273.15
How to use
Enter a temperature value in the input field.
Select the unit (°C, °F, or K) from the dropdown.
All three scales update instantly below.
Use quick presets to jump to common reference points.
Frequently Asked Questions
What is 37°C in Fahrenheit?
37°C equals 98.6°F, which is normal human body temperature.
At what temperature does water boil?
Water boils at 100°C (212°F or 373.15K) at sea level standard pressure.
What is the coldest possible temperature?
Absolute zero is 0 Kelvin, which equals -273.15°C or -459.67°F. Nothing can be colder than absolute zero.
At what temperature are Celsius and Fahrenheit equal?
Celsius and Fahrenheit scales are equal at -40°. That is, -40°C = -40°F.
How do I convert Celsius to Fahrenheit?
Multiply by 9/5 and add 32. For example: 25°C × 9/5 + 32 = 77°F.
Did you know?
The Fahrenheit scale was defined in 1724 by Daniel Gabriel Fahrenheit, who set 0°F as the coldest brine solution he could make and 96°F as approximate body temperature.
Absolute zero (0 K = −273.15°C) is the theoretical lower limit of temperature — a state where all molecular motion stops.
Venus has a surface temperature of about 465°C (869°F), hotter than Mercury, because its thick CO₂ atmosphere traps heat.