Barometric altitude difference calculator

Calculate upper minus lower elevation with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use upper minus lower elevation to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Lower-level pressure (hPa)
1013
Upper-level pressure (hPa)
900
Mean layer virtual temperature (K)
285
Upper minus lower elevation (m)
986.690814

Try another scenario

Lower-level pressure (hPa)
1114.3000000000002
Upper-level pressure (hPa)
900
Mean layer virtual temperature (K)
285
Upper minus lower elevation (m)
1,781.789479
Calculation method

Calculation method

Upper minus lower elevation (m)

Hypsometric thickness=Rd Tv/g ln(p lower/p upper).

Symbols and units
a
Lower-level pressure (hPa)
b
Upper-level pressure (hPa)
c
Mean layer virtual temperature (K)

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • Calculation uses the entered values and stated mathematical model; quantities must use the labelled units. Supported limits: All required fields must be finite values of the exact declared type and within displayed bounds. Lists contain1–1000 finite numbers. JSON tables are numeric rectangular rows, at most100 rows and30 columns; individual tools have stricter shape/domain constraints. Hypsometric thickness=Rd Tv/g ln(p lower/p upper).
Are these inputs private?

These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.

Further reading

Method reference ↗

Background reading; this does not imply endorsement or independent review of SumFizz.

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