Convert Any Temperature Scale Instantly

Type a value on either side and pick your units \u2014 the result updates automatically as you type. No convert button needed.

Result
25 \u00b0C = 77 \u00b0F

All-Unit Results

Every equivalent for the value you just entered, across every supported scale.

UnitValue

Formula

Celsius → Fahrenheit
\u00b0F = (\u00b0C × 9/5) + 32

How to Convert Temperature

  1. Pick the unit you're starting from and the unit you want to convert to.
  2. Type your value into either box \u2014 the converter calculates the result immediately as you type.
  3. Use the Precision dropdown if you need more or fewer decimal places.
  4. Use Copy Result to grab the full "X = Y" text, or Swap to flip the direction instantly.

Absolute Zero

Absolute zero (0 K, −273.15 °C, −459.67 °F) is the coldest temperature that is physically possible. This converter checks every input against this limit and shows "Temperature cannot be below absolute zero" if a value would go below it on any scale.

Celsius, Fahrenheit & Kelvin Reference Table

CelsiusFahrenheitKelvin
−40 °C−40 °F233.15 K
−20 °C−4 °F253.15 K
0 °C32 °F273.15 K
10 °C50 °F283.15 K
20 °C68 °F293.15 K
25 °C77 °F298.15 K
30 °C86 °F303.15 K
37 °C98.6 °F310.15 K
40 °C104 °F313.15 K
50 °C122 °F323.15 K
100 °C212 °F373.15 K
0 °C is the freezing point of water and 100 °C is its boiling point at standard atmospheric pressure. 37 °C is commonly cited as a typical human body temperature reference, though actual body temperature varies by person and time of day.

Cooking & Oven Temperatures

CelsiusFahrenheit
150 °C≈ 302 °F
160 °C≈ 320 °F
180 °C≈ 356 °F
200 °C≈ 392 °F
220 °C≈ 428 °F
230 °C≈ 446 °F

Frequently Asked Questions

What is a temperature converter?

A temperature converter changes a temperature reading from one scale into another — for example Celsius into Fahrenheit — using fixed, standard formulas so the result is accurate and consistent every time.

How do I convert Celsius to Fahrenheit?

Multiply the Celsius value by 9/5 and add 32: °F = (°C × 9/5) + 32. For example, 25 °C × 9/5 = 45, plus 32 = 77 °F.

How do I convert Fahrenheit to Celsius?

Subtract 32 from the Fahrenheit value, then multiply by 5/9: °C = (°F − 32) × 5/9. For example, (77 − 32) × 5/9 = 25 °C.

What is 0 Celsius in Fahrenheit?

0 °C equals 32 °F, the freezing point of water at standard atmospheric pressure.

What is 100 Celsius in Fahrenheit?

100 °C equals 212 °F, the boiling point of water at standard atmospheric pressure.

What is 25 Celsius in Fahrenheit?

25 °C equals 77 °F. You can also type any value into the converter above for an instant result.

What is absolute zero?

Absolute zero is the lowest physically possible temperature: 0 K, equal to −273.15 °C or −459.67 °F. This converter flags any value below this point as invalid, since it cannot exist physically.

Why does Kelvin not use a degree symbol?

By international (SI) convention, Kelvin is written as a plain number followed by "K" — not "°K" — because Kelvin is an absolute thermodynamic scale rather than a degree-based one.

Is the temperature converter accurate?

Yes. Every conversion runs through the standard Celsius-based formulas, with full-precision internal math and rounding applied only to the number that's displayed.