Kelvin to peak wavelength in microns
Type a value in K to get it in µm instantly.
9.659µm
That's 1.04× as hot as the Earth’s surface, while a person is 1.03× hotter. It radiates about 459.3 W from every square meter.
What it means
How much does it radiate?
These are for a perfect black body. A real surface radiates its emissivity times as much — around 0.95 for skin and paint, 0.05 for polished metal.
The math
How to convert K to µm
Two laws at once: W/m² = 5.670 × 10⁻⁸ × T⁴ for the power, and peak nm = 2,897,772 ÷ T for the color.
Example: 300 K = 9.65924 µm.
Every unit
Your temperature in every unit
Tables
K to µm conversion table
| K | µm |
|---|---|
| 3 K | 965.924 µm |
| 100 K | 28.9777 µm |
| 288 K | 10.0617 µm |
| 300 K | 9.65924 µm |
| 500 K | 5.79554 µm |
| 1,000 K | 2.89777 µm |
| 2,000 K | 1.44889 µm |
| 3,000 K | 0.965924 µm |
| 5,778 K | 0.501518 µm |
| 10,000 K | 0.289777 µm |
µm to K conversion table
| µm | K |
|---|---|
| 0.29 µm | 9,992.32 K |
| 0.502 µm | 5,772.45 K |
| 0.966 µm | 2,999.76 K |
| 1.45 µm | 1,998.46 K |
| 2.9 µm | 999.232 K |
| 5.8 µm | 499.616 K |
| 9.66 µm | 299.976 K |
| 10.1 µm | 286.908 K |
| 29 µm | 99.9232 K |
| 966 µm | 2.99976 K |
Quick answers
Quick answers
- How many µm is 1 K?
- 1 K is 2,897.77 µm.
- How many µm is 10 K?
- 10 K is 289.777 µm.
- How many µm is 300 K?
- 300 K is 9.65924 µm.
The units
About these units
Kelvin (K)
Absolute temperature, which is what the law needs.
Peak wavelength in microns (µm)
The infrared scale, where most warm objects peak.
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