Color Temperature ↔ Mired Converter — Free Online Tool

Convert Kelvin color temperature to and from mireds (mired = 1,000,000 ÷ K) for photography and lighting gel calculations.. Color Temperature ↔ Mired Converter is a free online tool from the ToolsRift Special Unit Converters collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.

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How to use Color Temperature ↔ Mired Converter

Enter a value in Kelvin or mired. The tool applies mired = 1,000,000 ÷ K both ways and shows a reference table of common sources.

Frequently asked questions

What is the Kelvin-to-mired formula?

mired = 1,000,000 ÷ Kelvin, and Kelvin = 1,000,000 ÷ mired.

Why use mireds instead of Kelvin?

Mireds add linearly, so lighting gels shift color by a fixed mired amount regardless of the starting temperature.

What is 6500 K in mireds?

6500 K ≈ 153.85 mired, close to daylight/D65, while 3200 K tungsten is 312.5 mired.

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