How do I convert K to °F?

Use the formula shown above or enter a value to see K converted to °F instantly.

What is the formula for K to °F?

The converter calculates °F by applying the category-specific conversion factor for Temperature.

K and °F are both part of the Temperature category; pick the unit that matches your measurement context (e.g., scale, region, or industry standard).

Temperature Converter & Guide

Use the live converter below to translate between Kelvin (K) and Fahrenheit (°F). Scroll further for quick examples, formula tips, and related units.

Formula insight: Temperature conversions require special formulas with both multiplication and addition/subtraction steps.

Convert

Kelvin

Fahrenheit

-457.87

°F

Rounded result (4 decimals max)

Formula

°F = (K - 273.15) × 9/5 + 32

1 K = -457.87 °F

Conversion sourcesTap or click to view references

The International System of Units (SI) — NIST Special Publication 330
National Institute of Standards and Technology (NIST). The SI Brochure (SP 330) is the definitive English edition of the BIPM SI tables. NIST’s edition lists the official constants and conversion factors tying inch-pound units to SI, which SwapUnits applies for length, mass, temperature, pressure, volume, and related conversions. See /standards/nist-si-tenfold for the complete decimal multiple/submultiple table. View source · View SI table

Results update as you type. Swap the direction to convert back from °F to K.

Multiply any row by the same factor to scale results. Use the converter above to enter exact values with your own units.

Keep the reciprocal handy when double-checking calculations or undoing a conversion.

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View the full unit roster, charts, and tips for Temperature Converter & Guide conversions.