Koverts/Compare
💧 Pressure · Comparison

Bar vs Atmosphere (atm)

See the key differences, formulas, and conversion table.

1 Bar equals

0.986923 atm

BarAtmosphere (atm)

Full converter

1 atm equals

1.01325 Bar

Atmosphere (atm)Bar

Full converter

// Side-by-side

Bar (Bar)Atmosphere (atm) (atm)Bar (Bar) ←
1 Bar0.986923 atm1 atm = 1.01325 Bar
5 Bar4.934616 atm5 atm = 5.06625 Bar
10 Bar9.869233 atm10 atm = 10.1325 Bar
20 Bar19.738465 atm20 atm = 20.265 Bar
25 Bar24.673082 atm25 atm = 25.33125 Bar
50 Bar49.346163 atm50 atm = 50.6625 Bar
100 Bar98.692327 atm100 atm = 101.325 Bar
200 Bar197.38465 atm200 atm = 202.65 Bar
500 Bar493.46163 atm500 atm = 506.625 Bar
1000 Bar986.92327 atm1000 atm = 1,013.25 Bar

Bar to Atmosphere (atm) formula

atm = Bar × 0.986923

Atmosphere (atm) to Bar formula

Bar = atm × 1.01325

How to use this comparison

Bar vs Atmosphere (atm) in practice

Use this page when you need to compare Bar and Atmosphere (atm) side by side, explain the difference to someone else, or sanity-check both directions at once. Use the dedicated converter when you already know the direction and just need a precise result for one value.

Best for comparison

Read the ratio, quick table, and reverse formula before choosing which unit to show in a report or product UI.

Use converter for precision

For a single value, open the Bar to atm or atm to Bar converter and keep the result tied to one direction.

Common mistake

Do not reuse the Bar to atm multiplier for the reverse direction. The reverse multiplier is 1.01325, not 0.986923.

// Frequently Asked Questions

What is the difference between Bar and Atmosphere (atm)?
Bar (Bar) and Atmosphere (atm) (atm) are both units of pressure. 1 Bar = 0.986923 atm, and 1 atm = 1.01325 Bar.
How do you convert Bar to Atmosphere (atm)?
To convert Bar to Atmosphere (atm), multiply by 0.986923. Formula: atm = Bar × 0.986923.
How do you convert Atmosphere (atm) to Bar?
To convert Atmosphere (atm) to Bar, multiply by 1.01325. Formula: Bar = atm × 1.01325.

// More comparisons