How do I convert kPa to atm?

Use the formula shown above or enter a value to see kPa converted to atm instantly.

What is the formula for kPa to atm?

The converter calculates atm by applying the category-specific conversion factor for Pressure.

When should I use kPa vs atm?

kPa and atm are both part of the Pressure category; pick the unit that matches your measurement context (e.g., scale, region, or industry standard).

Pressure Conversion Cheat Sheet

Convert kPa to atm

Use the live converter below to translate between Kilopascal (kPa) and Atmosphere (atm). Scroll further for quick examples, formula tips, and related units.

Formula insight: Most unit conversions use a simple multiplication or division by a conversion factor. The calculator shows the exact formula used.

Convert

kPa → atm

Kilopascal

kPa

Atmosphere

0.0099

atm

Rounded result (4 decimals max)

Formula

1 kPa = 0.0099 atm

Conversion sourcesTap or click to view references

The International System of Units (SI) — NIST Special Publication 330
National Institute of Standards and Technology (NIST). The SI Brochure (SP 330) is the definitive English edition of the BIPM SI tables. NIST’s edition lists the official constants and conversion factors tying inch-pound units to SI, which SwapUnits applies for length, mass, temperature, pressure, volume, and related conversions. See /standards/nist-si-tenfold for the complete decimal multiple/submultiple table. View source · View SI table

Results update as you type. Swap the direction to convert back from atm to kPa.

Back to main converter

kPa to atm quick table

Multiply any row by the same factor to scale results. Use the converter above to enter exact values with your own units.

Kilopascal (kPa)	Atmosphere (atm)
0.25 kPa	0.0025 atm
0.5 kPa	0.0049 atm
1 kPa	0.0099 atm
2 kPa	0.0197 atm
5 kPa	0.0493 atm
10 kPa	0.0987 atm
25 kPa	0.2467 atm
100 kPa	0.9869 atm

atm back to kPa

Keep the reciprocal handy when double-checking calculations or undoing a conversion.

Atmosphere (atm)	Kilopascal (kPa)
0.25 atm	25.3313 kPa
0.5 atm	50.6625 kPa
1 atm	101.325 kPa
2 atm	202.65 kPa
5 atm	506.625 kPa
10 atm	1,013.25 kPa
25 atm	2,533.125 kPa
100 atm	10,132.5 kPa

Explore more pressure conversion cheat sheet

kPa → Pa

Convert into Pascal without leaving SwapUnits.

kPa → psi

Convert into Pound per square inch without leaving SwapUnits.

kPa → bar

Convert into Bar without leaving SwapUnits.

Compare all pressure conversion cheat sheet

View the full unit roster, charts, and tips for Pressure Conversion Cheat Sheet conversions.

Open category guide