Temperature converter
Convert absolute temperatures or temperature differences across Celsius, Fahrenheit and Kelvin. Drag the graph handles to change inputs and explore the result.
Your inputs
The editable example is illustrative. Enter your own dimensions, operating data, prices, and fees. Results update as you edit.
Calculations run in your browser. Inputs are not saved or sent to analytics.
How it works
- → °C / °F / K
- Absolute value: C = (F−32) × 5/9; K = C+273.15; K ≥ 0; Difference: ΔC = ΔF × 5/9 = ΔK
- Worked example: 0 °C = 32 °F = 273.15 K; −40 °C = −40 °F; Δ1 °C = Δ1.8 °F
- Supported input limits: : -1,000,000,000,000 ≤ x ≤ 1,000,000,000,000
Input and formula key
Your result
Complete the inputs to see your result.
Assumptions and limitations
Absolute temperature mode applies scale offsets and rejects values below absolute zero. Difference mode converts an interval without offsets: a change of 10 °C equals 18 °F. Choose the mode that matches your measurement.
Sources
- NIST — conversion factor conventions Sources reviewed: 2026-10-06
- NIST — conversion factor table B.8 Sources reviewed: 2026-10-06
