Temperature Converter

Free Temperature Converter — Convert Celsius, Fahrenheit & Kelvin with Formulas

Convert temperatures between Celsius, Fahrenheit, and Kelvin instantly with OmniConverter's free temperature converter. The formula is straightforward: °F = (°C × 9/5) + 32. Water freezes at 0°C (32°F) and boils at 100°C (212°F). Whether you're checking the weather, following a recipe, or interpreting scientific data, our tool converts any temperature accurately in real time.

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).

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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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