Convert between Celsius (℃), Fahrenheit (℉), and Kelvin (K) — precise for daily use, cooking, and scientific measurements.
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Temperature Conversion Formulas:
℉ = ℃×9/5 + 32 | ℃ = (℉-32)×5/9 | K = ℃ + 273.15
Results shown with 2 decimal places (switch to 4 decimals for scientific use)
*SI base unit: Kelvin (K); Celsius = K - 273.15; Fahrenheit = common in US/UK
International standard: weather, cooking, daily use (0℃ = freezing, 100℃ = boiling)
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Quick conversions (common temperatures) - click to auto-fill:
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Understanding temperature units for daily life, cooking, weather, and scientific research.
| Unit | Symbol | Key Reference Points | Common Uses |
|---|---|---|---|
| Celsius | ℃ | 0℃ = water freezing; 100℃ = water boiling | Global weather, cooking, medicine, daily measurements (international standard) |
| Fahrenheit | ℉ | 32℉ = water freezing; 212℉ = water boiling | Weather in US/UK, household appliances (ovens, AC), legacy measurements |
| Kelvin | K | 0 K = absolute zero; 273.15 K = water freezing | Science, physics, chemistry, astronomy (SI base unit, no negative values) |
| Celsius (℃) | ≈ | Fahrenheit (℉) | ≈ | Kelvin (K) | Use Case |
|---|---|---|---|---|---|
| -273.15 | ≈ | -459.67 | ≈ | 0.00 | Absolute zero (scientific reference) |
| -40.00 | ≈ | -40.00 | ≈ | 233.15 | Equal point (Celsius = Fahrenheit) |
| 0.00 | ≈ | 32.00 | ≈ | 273.15 | Water freezing point |
| 37.00 | ≈ | 98.60 | ≈ | 310.15 | Normal human body temperature |
About temperature units and conversions
The formulas originate from Fahrenheit's historical definition and metric standardization:
Convert between Celsius (℃), Fahrenheit (℉), and Kelvin (K) with precision — ideal for daily, cooking, scientific use.
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