Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, Rankine, Delisle, and more — instantly.
Results
Conversion Formula
Quick Reference Chart
Common temperatures for everyday context.
| Reference Point | °C | °F | K |
|---|---|---|---|
| Absolute Zero | −273.15 | −459.67 | 0 |
| Water Freezes | 0 | 32 | 273.15 |
| Room Temperature | 20–22 | 68–72 | 293–295 |
| Human Body | 37 | 98.6 | 310.15 |
| Water Boils | 100 | 212 | 373.15 |
| Hot Desert Day | 50 | 122 | 323.15 |
| Steel Melts | 1370 | 2498 | 1643.15 |
Convert Celsius, Fahrenheit and Kelvin
Type a temperature in any unit and see it instantly converted to the other two — Celsius, Fahrenheit, and Kelvin — with the conversion formula shown so you can see the math.
Works both directions with live updates as you type. Free, fast, and running entirely in your browser.
All three units at once
Enter one value and get Celsius, Fahrenheit, and Kelvin together — no need to convert twice.
Formulas shown
Each conversion displays the formula used, so it doubles as a learning aid for students.
Free and private
All conversions run locally in your browser — nothing you type is ever sent anywhere.
How to use
- Enter a temperature value.
- Pick the unit it is in.
- Read the converted values and the formula instantly.
Frequently Asked Questions
How do I convert Celsius to Fahrenheit?
Multiply by 9/5 and add 32 — so 20°C becomes 68°F. The tool shows the formula with every conversion.
How do I convert Fahrenheit to Celsius?
Subtract 32, then multiply by 5/9 — so 68°F becomes 20°C.
What is Kelvin used for?
Kelvin is the absolute temperature scale used in science — 0 K is absolute zero, and 0°C equals 273.15 K.
Does it update as I type?
Yes — results refresh live as you enter values, in both directions.
Is the converter free?
Yes, free with no signup.
Related Converters
Check Out Other Popular Tools
YouTube Subscriber Counter
Track live YouTube subscriber counts with real-time updates. Watch your favorite creators grow and compare channel statistics.
What Is My IP Address? — Free Instant IP Lookup
What is my IP address? Check your public IPv4 & IPv6 address, ISP provider, city, country, and network telemetry instantly. 100% free, fast, and private.
Vegetable Planting Calendar
Create a custom garden schedule based on your frost dates. Know exactly when to start seeds and transplant vegetables.
Was this tool helpful?
Comments
Loading comments...