Atomic units of pressure to Standard atmospheres Converter

1 atomic unit of pressure (Eh/a₀³) equals 290,362,849.218 standard atmospheres (atm).

Quick answer

  • 1 atomic unit of pressure = 290,362,849.2 standard atmospheres
  • 1 standard atmosphere = 3.4439668 × 10-9 atomic units of pressure
  • Formula: atm = Eh/a₀³ × 290,362,849.218

1 atomic unit of pressure = 290,362,849.2 standard atmospheres

How to convert atomic units of pressure to standard atmospheres

atm = Eh/a₀³ × 290,362,849.218

To convert atomic units of pressure to standard atmospheres, multiply the number of atomic units of pressure by 290,362,849.218.

Example: 1 Eh/a₀³ to atm

  1. Start with the value in atomic units of pressure: 1 Eh/a₀³.
  2. Multiply by 290,362,849.218: 1 × 290,362,849.218 = 290,362,849.2.
  3. Result: 1 atomic unit of pressure = 290,362,849.2 standard atmospheres.

Going the other way, 1 standard atmosphere = 3.4439668 × 10-9 atomic units of pressure, so to convert standard atmospheres back to atomic units of pressure you divide by the same number. See standard atmospheres to atomic units of pressure.

Atomic units of pressure to standard atmospheres conversion table

Atomic units of pressure (Eh/a₀³)Standard atmospheres (atm)
1 Eh/a₀³ 290,362,849.2 atm
2 Eh/a₀³ 580,725,698.4 atm
3 Eh/a₀³ 871,088,547.7 atm
4 Eh/a₀³ 1,161,451,397 atm
5 Eh/a₀³ 1,451,814,246 atm
6 Eh/a₀³ 1,742,177,095 atm
7 Eh/a₀³ 2,032,539,945 atm
8 Eh/a₀³ 2,322,902,794 atm
9 Eh/a₀³ 2,613,265,643 atm
10 Eh/a₀³ 2,903,628,492 atm
100 Eh/a₀³ 29,036,284,920 atm

What is an atomic unit of pressure?

The atomic unit of pressure, about 29.4 terapascals, arises in quantum chemistry.

More about atomic units of pressure →

What is a standard atmosphere?

The standard atmosphere is the average air pressure at sea level, defined as exactly 101,325 pascals, 760 mmHg or about 14.696 psi.

More about standard atmospheres →

Frequently asked questions

How many standard atmospheres are in an atomic unit of pressure?

One atomic unit of pressure is 290,362,849.2 standard atmospheres.

How many atomic units of pressure are in a standard atmosphere?

One standard atmosphere is 3.4439668e-9 atomic units of pressure.

What is the formula to convert atomic units of pressure to standard atmospheres?

atm = Eh/a₀³ × 290,362,849.218.