MeasureCalc

Convert Standard atmosphere (atm) to Torr

Category: Pressure

760 torr

1 atm = 760 torr

High-precision rounding: 6 decimals

How to convert standard atmosphere (atm) to torr

Pressure is force per unit area. Pascals (and kPa, hPa) are SI, while bar and psi are widely used in engineering and scuba. Conversions must respect absolute vs gauge references when comparing values.

This converter calculates Standard atmosphere (atm) to Torr values by using the correct conversion rule for the Pressure category. For linear units, standardized factors are used. For temperature, the calculator applies the proper formula with offsets.

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Quick conversion table

Handy values for Standard atmosphere (atm) to Torr. Click a value to open that exact result.

Standard atmosphere (atm) Torr
1 760
0.5 380
2.5 1900
10 7600

Conversion formula

Linear unit conversions use standardized factors; many are exact by definition (e.g., 1 in = 25.4 mm, 1 ft = 0.3048 m).

Common mistakes

  • Comparing gauge pressure (psig) with absolute pressure (psia/hPa) without converting reference.
  • Mixing bar with atm (1 atm = 1.01325 bar).

Unit facts

  • Standard atmosphere (atm): Standard atmosphere is exactly 101,325 Pa; reference pressure in chemistry and physics.
  • Torr: Torr is ≈133.322368 Pa; named after Torricelli (barometer). Used in vacuum science.

About Standard atmosphere (atm)

Standard atmosphere (atm)

Exactly 101,325 Pa. Reference pressure for chemistry and gas laws; useful for normalizing conditions.

History: A conventional unit set for convenience in calculations and comparative tables.

About Torr

Torr

≈133.322 Pa. Preferred in high-vacuum work alongside millitorr and microns.

History: Named after Torricelli; bridges historical millimeters of mercury (mmHg) with SI pascals.

Frequently asked questions

How many Torr are in one Standard atmosphere (atm)?
1 Standard atmosphere (atm) equals 760 Torr.
Is Standard atmosphere (atm) to Torr conversion exact?
Many unit conversions are exact by definition, while others use standardized conversion constants.
What is the fastest way to convert Standard atmosphere (atm) to Torr?
Enter a value in Standard atmosphere (atm), choose Torr as the target unit, and the calculator will instantly return the result.

Convert Standard atmosphere (atm) to other units

Convert other units to Torr