The kelvin (symbol: K) is the base unit of temperature in the International System of Units (SI). The kelvin is defined as the fraction 1⁄273.16 of the thermodynamic temperature of the triple point of water (exactly 0.01 °C or 32.018 °F). In other words, it is defined such that the triple point of water is exactly 273.16 K.
| degree Réaumur | degree Rømer | degree Fahrenheit | degree Celsius | degree Kelvin | degree Delisle | degree Newton | degree Rankine |
|---|---|---|---|---|---|---|---|
| 1 | 8.15625 | 34.25 | 1.25 | 274.4 | 148.125 | 0.4125 | 493.92 |
| -9.9047619 | 1 | 9.7142857 | -12.3809524 | 260.7690476 | 168.5714286 | -4.0857143 | 469.3842857 |
| -13.7777778 | -1.5416667 | 1 | -17.2222222 | 255.9277778 | 175.8333333 | -5.6833333 | 460.67 |
| 0.8 | 8.025 | 33.8 | 1 | 274.15 | 148.5 | 0.33 | 493.47 |
| -217.72 | -135.37875 | -457.87 | -272.15 | 1 | 558.225 | -89.8095 | 1.8 |
| 79.4666667 | 59.65 | 210.8 | 99.3333333 | 372.4833333 | 1 | 1 | 670.47 |
| 2.4242424 | 9.0909091 | 37.4545455 | 3.0303030 | 276.1803030 | 145.4545455 | 1 | 497.1245455 |
| -218.0755556 | -135.6120833 | -458.67 | -272.5944444 | 0.5555556 | 558.8916667 | -89.9561667 | 1 |
| 1 degrees Kelvin = 1 degrees Kelvin |
| 2 degrees Kelvin = 2 degrees Kelvin |
| 3 degrees Kelvin = 3 degrees Kelvin |
| 4 degrees Kelvin = 4 degrees Kelvin |
| 5 degrees Kelvin = 5 degrees Kelvin |