🌡️
Temperature Converter
Convert between Celsius, Fahrenheit, Kelvin, Rankine, and historical scales (Réaumur, Rømer, Newton, Delisle, Wedgwood).
Popular Temperature Conversions
Complete Unit Reference & Conversion Ratios
Temperature Reference & Conversion Factors
Base reference unit: Celsius (°C)
| Unit Name | Symbol | Classification | Value in Celsius | Description |
|---|---|---|---|---|
| Celsius | °C | 🔹 Modern Standard Scales | Non-linear formula | Standard metric scale (water freezes at 0°C, boils at 100°C) |
| Fahrenheit | °F | 🔹 Modern Standard Scales | Non-linear formula | US customary scale (water freezes at 32°F, boils at 212°F) |
| Kelvin | K | 🔹 Modern Standard Scales | Non-linear formula | SI base unit of absolute thermodynamic temperature (0 K = -273.15°C) |
| Rankine | °R | 🔹 Modern Standard Scales | Non-linear formula | Absolute Fahrenheit thermodynamic scale (0 °R = -459.67°F) |
| Réaumur | °Ré | 🏺 Historical Temperature Scales | Non-linear formula | Historical European scale (water freezes at 0°Ré, boils at 80°Ré) |
| Rømer | °Rø | 🏺 Historical Temperature Scales | Non-linear formula | Invented in 1701 (water freezes at 7.5°Rø, boils at 60°Rø) |
| Newton | °N | 🏺 Historical Temperature Scales | Non-linear formula | Scale devised by Isaac Newton (water freezes at 0°N, boils at 33°N) |
| Delisle | °De | 🏺 Historical Temperature Scales | Non-linear formula | Inverted scale (water boils at 0°De, freezes at 150°De) |
| Wedgwood | °W | 🏺 Historical Temperature Scales | Non-linear formula | Historical pyrometric scale for pottery kilns (0°W ≈ 580.56°C red heat) |