Earth Science & Energy
Atmospheric Barometric Altimetry Elevation from Pressure Sizer
Calculate atmospheric barometric altimetry elevation from pressure using the stated engineering or scientific relationship and adjustable field inputs.
Preparing your result…
What this calculator does
Calculates Atmospheric Barometric Altimetry Elevation from Pressure Sizer using the formula verified against the cited source.
What your result means
An estimate from the inputs you enter, within the scope stated below — not advice.
Formula
h = 44,330[1 − (P/P₀)^0.190284]
The step-by-step working for your own numbers appears with the result above and in the PDF report.
Frequently asked questions
Symbols and assumptions
- Inputs
- The values entered in the fields above
- • Standard-troposphere pressure altitude approximation h(m)≈44330[1−(P/P0)^0.190284], with P and P0 in identical pressure units.
Sources and review
Reviewed 2026-10-18 · Next review 2027-04-18
- • The constants assume standard lapse rate/reference temperature; h is a model pressure-height estimate. A local sea-level pressure reference does not remove temperature/humidity deviations. It is not a precise surveyed elevation and is not valid across all atmospheric layers.
Important limitation
This is an educational estimate based only on the values and formula shown. Verify current rates, rules, units, and professional standards before relying on the result. It is not personalized financial or investment advice.
Quick reference
| Scenario | Station pressure (hPa) | Sea-level reference pressure (hPa) | Pressure altitude |
|---|---|---|---|
| Worked example | 900 | 1,013.25 | 988.5903 m |
| Half the amounts | 450 | 506.63 | 988.6717 m |
| Double the amounts | 1,100 | 1,100 | 0 m |
Need the full picture? Get the detailed PDF report with charts, tables, formulas and working steps.
Reviewed 2026-10-18 · Next review 2027-04-18
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