How do I convert atmosphere to psi?

To convert atmosphere to psi, use our free online converter. Simply enter your atmosphere value and get instant, accurate results. The conversion is based on internationally standardized factors.

Can I convert psi back to atmosphere?

Absolutely! You can use the swap button in the converter to reverse the conversion direction, or visit our psi to atmosphere converter page for the reverse calculation.

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Atmosphere Converter

Convert Atmosphere to Psi and more â€¢ 57 conversions

Enter Value

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Scientific:OFF

Result

1 = 0

Conversion Formula

1 = ...

1â†’1

10â†’10

100â†’100

1000â†’1000

Quick:

Convert Atmosphere to PSI (atm to psi)

Convert Standard Atmospheres (atm) to PSI (Pounds per Square Inch). This conversion bridges the gap between scientific reference pressure (atm) and practical engineering units (PSI). It is particularly critical in scuba diving, where surface pressure is 1 atm, and every 33 feet of depth adds roughly another atmosphere of pressure.

Conversion Formula

psi = atm × 14.6959

Multiply atmospheres by roughly 14.7. For precise calculation: 2 atm × 14.6959 = 29.39 psi.

Standard Atmosphere (atm)

Definition

A unit of pressure defined as exactly 101,325 Pascals.

Origins & History

Originally defined as the pressure exerted by the Earth's atmosphere at sea level at Paris. It was later standardized to a precise Pascal value to decouple it from local gravity variations.

Current Use: Used in chemistry (standard temperature and pressure), scuba diving, and aviation.

OUT

PSI (psi)

Definition

Pounds per Square Inch. A unit of pressure resulting from a force of one pound-force applied to an area of one square inch.

Origins & History

Standard in the industrial revolution in Britain and America for steam engines.

Current Use: The standard unit for tire pressure, industrial hydraulics, and compressed air systems in the US.

All Pressure Conversions

105 converters

Centimeter Mercury 0 176 C

Pascal

Centimeter Water 4 176 C

Dyne Square Centimeter

Popular Conversions

Meter → Foot Kilometer → Mile Celsius → Fahrenheit Kilogram → Pound Liter → Gallon Square Meter → Square Foot Km Hour → Mile Hour Pascal → Psi

📐Conversion Formula

= × 1.00000

How to Convert

To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.

Quick Examples

1.000

10.00

100

100.0

💡 Pro Tip: For the reverse conversion ( → ), divide by the conversion factor instead of multiplying.

Related Pressure Conversions

Explore more pressure conversions for your calculations.

→Atmosphere Technical to Pascal →Attopascal to Pascal →Bar to Pascal →Bar to Psi →Centimeter Mercury 0 176 C to Pascal →Centimeter Water 4 176 C to Pascal →Centipascal to Pascal →Decipascal to Pascal →Dekapascal to Pascal →Dyne Square Centimeter to Pascal →Exapascal to Pascal →Femtopascal to Pascal

View all 105 pressure conversions →

Frequently Asked Questions

How do I convert to ?▼

To convert to , multiply your value by 1. For example, 10 equals 10 .

What is the formula for to conversion?▼

The formula is: = × 1. This conversion factor is based on international standards.

Is this to converter accurate?▼

Yes! MetricConv uses internationally standardized conversion factors from organizations like NIST and ISO. Our calculations support up to 15 decimal places of precision, making it suitable for scientific, engineering, and everyday calculations.

Can I convert back to ?▼

Absolutely! You can use the swap button (⇄) in the converter above to reverse the conversion direction, or visit our to converter.

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