Heat-Index Calculator
Compute Temperature C, Relative Humidity Pct, Heat Index C, Heat Index F, Risk Level from Temperature C, Relative Humidity Pct, Heat Index C, Heat Index F. Free online Hong Kong ecology calculator.
Input Data
Results
At a glance:Compute Temperature C, Relative Humidity Pct, Heat Index C, Heat Index F, Risk Level from Temperature C, Relative Humidity Pct, Heat Index C, Heat Index F. Free online Hong Kong ecology calculator.
Formula
HI = -42.379 + 2.04901523\,T + 10.14333127\,RH - 0.22475541\,T\,RH - 6.83783\times10^{-3}\,T^2 - 5.481717\times10^{-2}\,RH^2 + 1.22874\times10^{-3}\,T^2RH + 8.5282\times10^{-4}\,TRH^2 - 1.99\times10^{-6}\,T^2RH^2
$$HI = -42.379 + 2.04901523\,T + 10.14333127\,RH - 0.22475541\,T\,RH - 6.83783\times10^{-3}\,T^2 - 5.481717\times10^{-2}\,RH^2 + 1.22874\times10^{-3}\,T^2RH + 8.5282\times10^{-4}\,TRH^2 - 1.99\times10^{-6}\,T^2RH^2$$How to Use
- Enter Temperature C.
- Enter Relative Humidity Pct.
- Enter Heat Index C.
- Enter Heat Index F.
- The calculator returns Temperature C, Relative Humidity Pct, Heat Index C, Heat Index F, Risk Level.
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References
Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.