Free temperature converter — Celsius, Fahrenheit, Kelvin, and Rankine with live two-way conversion.
Temperature converter
Base unit: K · 5 units
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The QuickToolz Temperature Converter translates between Celsius, Fahrenheit, Kelvin, and Rankine. Type any temperature and the other scales update instantly. Perfect for cooking with international recipes, science homework, weather conversion, and engineering reference.
°F = (°C × 9/5) + 32
°C = (°F − 32) × 5/9
K = °C + 273.15
Everything you need, nothing you don’t. Built for speed and simplicity.
Type into any temperature field — every other field updates live.
Supports Celsius, Fahrenheit, Kelvin, Rankine.
Live updates as you type — no calculate button.
Everything you need, nothing you don’t. Built for speed and simplicity.
Enter a number in any unit — the other units update instantly.
Got questions? We’ve got answers. Common questions about Temperature Converter.
Uses official SI and NIST conversion factors.
The converter is bi-directional — type into any field.
One-click copy for the unit you need.