mK\text{mK}

millikelvin

Temperatureexact by definition

A millikelvin is 10⁻³ K, an exact SI prefix. It is the everyday unit of dilution-refrigerator work: superconducting qubits run near 10 mK, and the base temperature of a commercial cryostat is quoted in millikelvin because quoting it in kelvin would hide the difference between a good machine and a great one.

1 mK\text{mK} -273.149 ∘C^{\circ}\text{C}

One millikelvin in every temperature unit

1,000,000nanokelvin (nK)
1,000microkelvin (μK)
1millikelvin (mK)this unit
-459.668degree Fahrenheit (°F)
0.0018degree Rankine (°R)
0.001kelvin (K)
-273.149degree Celsius (°C)
-218.519degree Réaumur (°Ré)
0.000001kilokelvin (kK)
1.00000e-09megakelvin (MK)
1.00000e-12gigakelvin (GK)