Temperature Converter

Free Temperature Converter — Convert Celsius, Fahrenheit and Kelvin Instantly

Convert temperatures between Celsius, Fahrenheit, and Kelvin instantly with OmniConverter's free temperature converter. Whether you're checking the weather, following a recipe, interpreting scientific data, or understanding a medical reading, our tool converts any temperature accurately in real time — no formulas needed.

How It Works

Convert in three simple steps.

1

Enter the Temperature Value

2

Choose Your Temperature Scales

3

Get Your Converted Temperature

Popular Temperature Conversions

Common Benchmarks

Reference

1 °C°C

1 °C

Reference

1 °C°F

33.8 °F

Reference

1 °CK

274.15 K

Real-World Use Cases

Temperature conversion is needed for cooking and baking (US recipes use Fahrenheit, most others use Celsius), checking international weather forecasts, understanding medical temperature readings (US uses °F, most of the world uses °C), scientific and laboratory work (which uses Kelvin), HVAC and climate control engineering, and chemistry (reactions and material properties are often defined in Celsius or Kelvin).

Frequently asked questions

Quick answers to common conversion questions

How do I convert Celsius to Fahrenheit?+

Use the formula °F = (°C × 9/5) + 32. For example, 25°C = 77°F.

What is 0°C in Fahrenheit?+

0 degrees Celsius equals 32 degrees Fahrenheit, the freezing point of water.

How do I convert Fahrenheit to Celsius?+

Use the formula °C = (°F − 32) × 5/9. For example, 98.6°F ≈ 37°C.

How do I convert Kelvin to Celsius?+

Subtract 273.15 from the Kelvin value to get Celsius.

What is absolute zero?+

Absolute zero is 0 K, which is equal to -273.15°C.

Why are temperature scales different?+

Each scale sets its zero point and unit size differently, which is why the formulas are not linear in an identical way.

Can I convert 100°C to Fahrenheit?+

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

How do I read Kelvin temperature?+

Kelvin starts at absolute zero, so it is common in scientific and engineering contexts.

Does the converter handle negative temperatures?+

Yes, negative values are supported for Celsius and Fahrenheit.

Are temperature conversions exact?+

They follow well-defined formulas, though displayed results may be rounded to a few decimals.

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