Umbreytingarformúlur hitamælieininga

+ Samanburður hitastigastaðla  Kelvin Selsíus Fahrenheit Rankine Delisle Newton Réaumur Rømer Alkul 0 K −273,15 °C −459,67 °F 0 °Ra 559,73 °De −90,14 °N −218,52 °Ré −135,9 °Rø Bræðslumark vatns 273,15 K 0 °C 32 °F 491,67 °Ra 150 °De 0 °N 0 °Ré 7,5 °Rø Meðal líkamshiti manns 310,15 K 37 °C 98,6 °F 558,27 °Ra 94,5 °De 12,21 °N 29,6 °Ré 26,93 °Rø Suðumark vatns 373,15 K 100 °C 212 °F 671,67 °Ra 0 °De 33 °N 80 °Ré 60 °Rø

 Kelvin 
 í Formúla Selsíus [°C] = [K] − 273,15 Fahrenheit [°F] = [K] × 9/5 − 459,67 Rankine [°Ra] = [K] × 9/5 Delisle [°De] = (373,15 − [K]) × 3/2 Newton [°N] = ([K] − 273,15) × 33/100 Réaumur [°Ré] = ([K] − 273,15) × 4/5 Rømer [°Rø] = ([K] − 273,15) × 21/40 + 7,5 

 Selsíus 
 í Formúla Kelvin [K] = [°C] + 273,15 Fahrenheit [°F] = [°C] × 9/5 + 32 Rankine [°Ra] = [°C] × 9/5 + 491,67 Delisle [°De] = (100 − [°C]) × 3/2 Newton [°N] = [°C] × 33/100 Réaumur [°Ré] = [°C] × 4/5 Rømer [°Rø] = [°C] × 21/40 + 7,5 

 Fahrenheit 
 í Formúla Kelvin [K] = ([°F] + 459,67) × 5/9 Selsius [°C] = ([°F] − 32) × 5/9 Rankine [°Ra] = [°F] + 459,67 Delisle [°De] = (212 − [°F]) × 5/6 Newton [°N] = ([°F] − 32) × 11/60 Réaumur [°Ré] = ([°F] − 32) × 4/9 Rømer [°Rø] = ([°F] − 32) × 7/24 + 7,5

 Rankine 
 í Formúla Kelvin [K] = [°Ra] × 5/9 Selsíus [°C] = [°Ra] × 5/9 − 273,15 Fahrenheit [°F] = [°Ra] − 459,67 Delisle [°De] = (671,67 − [°Ra]) × 5/6 Newton [°N] = ([°Ra] − 491,67) × 11/60 Réaumur [°Ré] = ([°Ra] × 5/9 + 273,15) × 4/5 Rømer [°Rø] = ([°Ra] − 491,67) × 7/24 + 7,5

 Delisle 
 í Formúla Kelvin [K] = 373,15 − [°De] × 2/3 Selsíus [°C] = 100 − [°De] × 2/3 Fahrenheit [°F] = 212 − [°De] × 6/5 Rankine [°Ra] = 671,67 − [°De] × 6/5 Newton [°N] = 33 − [°De] × 11/50 Réaumur [°Ré] = 80 − [°De] × 8/15 Rømer [°Rø] = 60 − [°De] × 7/20

 Newton 
 í Formúla Kelvin [K] = [°N] × 100/33 + 273,15 Selsíus [°C] = [°N] × 100/33 Fahrenheit [°F] = [°N] × 60/11 + 32 Rankine [°Ra] = [°N] × 60/11 + 491,67 Delisle [°De] = (33 − [°N]) × 50/11 Réaumur [°Ré] = [°N] × 80/33 Rømer [°Rø] = [°N] × 35/22 + 7,5

 Réaumur 
 í Formúla Kelvin [K] = [°Ré] × 5/4 + 273,15 Selsíus [°C] = [°Ré] × 5/4 Fahrenheit [°F] = [°Ré] × 9/4 + 32 Rankine [°Ra] = [°Ré] × 9/4 + 491,67 Delisle [°De] = (80 − [°Ré]) × 15/8 Newton [°N] = [°Ré] × 33/80 Rømer [°Rø] = [°Ré] × 21/32 + 7,5

 Rømer 
 í Formúla Kelvin [K] = ([°Rø] − 7,5) × 40/21 + 273,15 Selsíus [°C] = ([°Rø] − 7,5) × 40/21 Fahrenheit [°F] = ([°Rø] − 7,5) × 24/7 + 32 Rankine [°Ra] = ([°Rø] − 7,5) × 24/7 + 491,67 Delisle [°De] = (60 − [°Rø]) × 20/7 Newton [°N] = ([°Rø] − 7,5) × 22/35 Réaumur [°Ré] = ([°Rø] − 7,5) × 32/21

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