Kelvin Temperature Converter
Convert temperatures between Kelvin (K), Celsius (°C), and Fahrenheit (°F). Perfect for scientific calculations and absolute temperature measurements.
Kelvin to Celsius
K
°C
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Kelvin to Fahrenheit
K
°F
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Kelvin Conversion Formulas
Kelvin to Celsius
Formula
°C = K - 273.15
Step-by-Step
- Take the temperature in Kelvin
- Subtract 273.15 from it
- The result is the temperature in Celsius
Example
Convert 293.15 K to Celsius: 293.15 - 273.15 = 20°C
Kelvin to Fahrenheit
Formula
°F = (K - 273.15) × 9/5 + 32
Step-by-Step
- Take the temperature in Kelvin
- Subtract 273.15
- Multiply by 9/5
- Add 32
- The result is the temperature in Fahrenheit
Example
Convert 293.15 K to Fahrenheit: (293.15 - 273.15) × 9/5 + 32 = 20 × 1.8 + 32 = 68°F
Important Kelvin Temperatures
0 K
-273.15°C|-459.67°F
Absolute zero
273.15 K
0°C|32°F
Water freezes
293.15 K
20°C|68°F
Room temperature
310.15 K
37°C|98.6°F
Body temperature
373.15 K
100°C|212°F
Water boils
5778 K
5504.85°C|9940.73°F
Sun's surface
Temperature Conversion Table
| Celsius (°C) | Fahrenheit (°F) | Kelvin (K) | Context |
|---|---|---|---|
| -40°C | -40°F | 233.15 K | Extremely cold |
| -30°C | -22°F | 243.15 K | Very cold |
| -20°C | -4°F | 253.15 K | Cold winter day |
| -10°C | 14°F | 263.15 K | Freezing |
| 0°C | 32°F | 273.15 K | Water freezes |
| 10°C | 50°F | 283.15 K | Cool day |
| 20°C | 68°F | 293.15 K | Room temperature |
| 30°C | 86°F | 303.15 K | Warm day |
| 40°C | 104°F | 313.15 K | Hot day |
| 50°C | 122°F | 323.15 K | Very hot |
| 60°C | 140°F | 333.15 K | Extremely hot |
| 70°C | 158°F | 343.15 K | Desert heat |
| 80°C | 176°F | 353.15 K | Dangerously hot |
| 90°C | 194°F | 363.15 K | Near boiling |
| 100°C | 212°F | 373.15 K | Water boils |
Disclaimer: This temperature converter provides calculations for informational and educational purposes only. For medical decisions (such as assessing body temperature or fever), cooking safety, industrial applications, or any situation where precise temperature measurements are critical, please consult with a qualified professional or use calibrated instruments. Always verify important temperature readings with appropriate equipment and expertise.
About the Kelvin Scale
The Kelvin scale (K) is the SI base unit of temperature. It's an absolute temperature scale starting at absolute zero (0 K), the theoretical point where all molecular motion stops. Unlike Celsius and Fahrenheit, Kelvin doesn't use degree symbols. The scale is widely used in scientific and engineering applications.
Key Kelvin Facts
- Absolute Zero: 0 K = -273.15°C = -459.67°F
- Water Freezes: 273.15 K = 0°C = 32°F
- Room Temperature: ~293 K = 20°C = 68°F
- Water Boils: 373.15 K = 100°C = 212°F
- Named After: Lord Kelvin (William Thomson)
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