Pressure Converter

Convert between common and industrial pressure units.

Pressure
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Related Conversions
10 Torr to atm 35 Torr to atm 40 Torr to atm 45 Torr to atm 65 Torr to atm 90 Torr to atm 100 Torr to atm 200 Torr to atm 700 Torr to atm 1,000 Torr to atm 2,000 Torr to atm 5,000 Torr to atm
Reverse Conversions
0.5 atm to Torr 10 atm to Torr 22.5 atm to Torr 30 atm to Torr 35 atm to Torr 70 atm to Torr 80 atm to Torr 120 atm to Torr 150 atm to Torr 180 atm to Torr 500 atm to Torr 5,000 atm to Torr
More Pressure Conversions
1 Torr to Pa 1 atm to kPa 1 atm to psi 10 atm to kPa 10 bar to kPa 10 bar to psi 20 bar to psi 30 inHg to kPa 35 psi to bar 80 psi to bar 101.325 kPa to atm 105 kPa to psi

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Common Benchmarks

Car tire 32 psi
Mountain air 70 kPa
Blood pressure systolic 120 mmHg
Natural gas line 0.25 psi
Storm center 950 hPa
Soccer ball 12 psi

Formula

atm = Torr × 0.0013157895

Example

Example: convert 25 torr to atmospheres.

25 Torr = 0.03289474 atm

Conversion table

torr (Torr) atmospheres (atm)
1 Torr 0.00131579 atm
2 Torr 0.00263158 atm
5 Torr 0.00657895 atm
10 Torr 0.01315789 atm
20 Torr 0.02631579 atm
50 Torr 0.06578947 atm
100 Torr 0.13157895 atm

Explanation

These are both units.

How to convert torr to atmospheres

  1. Start with the value in torr (Torr).
  2. Multiply it by 0.0013157895.
  3. The result is the measurement in atmospheres (atm).

Example: 25 Torr → 0.03289474 atm

Frequently Asked Questions

How much is 25 torr in atmospheres?

25 torr is about 0.032895 atmospheres.

How many atmospheres is 1 torr?

1 torr is about 0.001316 atmospheres.

How many torr is 1 atmosphere?

1 atmosphere equals 760 torr.

What is the difference between torr and atmospheres?

Both measure pressure, but they are commonly used in different contexts. Torr are used in lab work and vacuum technology. Atmospheres are used as a reference for standard atmospheric pressure.

Where are torr and atmospheres used?

In practice: Torr are used in lab work and vacuum technology. Atmospheres are used as a reference for standard atmospheric pressure.

Why does 1 torr equal 0.001316 atmospheres?

Because pressure units are defined with a fixed relationship (often relative to the pascal). To convert, multiply by that factor.