Convert Torr to PSI

Convert Torr to PSI for cross-unit reporting between vacuum/lab and Imperial gauges.

From

Enter Value

How to Convert Torr to Psi

To convert Torr to PSI, divide Torr by 51.7149.

Conversion Formula:

value / 51.7149

Understanding the Conversion

Torr to PSI converts vacuum-scale pressures to the Imperial unit psi. Divide Torr by 51.7149. For example, 760 Torr ≈ 14.7 psi (atmosphere). This helps when instruments read Torr but stakeholders use psi gauges.

Conversion Examples

Example: Convert 760 Torr to psi

Step 1: 760 ÷ 51.7149 ≈ 14.7.
Step 2: Result ≈ 14.7 psi.
Step 3: Atmospheric reference.

760 Torr ≈ 14.7 psi

Sea-level pressure.

Example: Convert 100 Torr to psi

Step 1: 100 ÷ 51.7149 ≈ 1.93.
Step 2: Result ≈ 1.93 psi.
Step 3: Low pressure example.

100 Torr ≈ 1.93 psi

Low absolute pressure.

Example: Convert 10 Torr to psi

Step 1: 10 ÷ 51.7149 ≈ 0.193.
Step 2: Result ≈ 0.193 psi.
Step 3: High vacuum range.

10 Torr ≈ 0.193 psi

High vacuum illustration.

Conversion Formula

PSI is about 51.7149 times smaller than Torr values (because 760 Torr = 14.7 psi). Dividing Torr by 51.7149 converts to psi.

Conversion Chart

Torr	Psi
1	0.0193
5	0.0966
10	0.193
50	0.966
100	1.93
250	4.83
500	9.67
760	14.7
1000	19.34
1500	29.01

Quick Conversion Tip

Torr ÷ 52 ≈ psi for a quick check.

Unit Definitions

Torr (Torr)

Vacuum unit.

1 Torr ≈ 51.7149 psi^-1 (inverse); 1 atm = 760 Torr = 14.7 psi.

Pound per Square Inch (psi)

Imperial pressure unit.

psi to Torr multiply by 51.7149; psi to kPa multiply by 6.89476.

Common Use Cases

Vacuum readings shared with psi-only audiences
Lab data converted to psi for reports
Education: link Torr to Imperial units
Calibration across Torr and psi gauges

Frequently Asked Questions

Why convert to psi?

Many gauges and stakeholders use psi; conversion keeps values understandable.

Is 51.7149 exact?

It is the standard factor derived from 1 atm = 760 Torr = 14.7 psi.

How to return to Torr?

Multiply psi by 51.7149.