kPa to Atmospheres Converter Calculator

Convert kilopascals to standard atmospheres with precision controls, rounding modes, and instant validation. Enter any pressure, choose decimals, and see formulas, unit definitions, and scientific notation. Supports keyboard input, copyable results, and shareable URLs. Ideal for engineering, HVAC, scuba, and lab work where accurate pressure conversions and repeatable workflows matter. Includes history, export, accessibility features, and mobile-friendly responsive design. tools.

Converter

Try 101.325 or 250.
Conversion uses 1 atm = 101.325 kPa. Exact by definition (IUPAC)
Tips: Press Enter to calculate. Use Ctrl + C to copy after selecting result. Toggle notation to format output.

Formula & Units

\( \text{atm} = \dfrac{\text{kPa}}{101.325} \)

  • kPa: kilopascal, SI unit for pressure.
  • atm: standard atmosphere, reference pressure.
  • Factor: 1 atm = 101.325 kPa (exact).

History (this session)

    Frequently Asked Questions

    What is the exact conversion between kPa and atm?

    1 atmosphere equals exactly 101.325 kilopascals. To convert kPa to atm, divide by 101.325.

    Why do I see different rounding in the result?

    You control the number of decimal places. Increase decimals for more precision or switch to scientific notation to see very small differences.

    Is the conversion accurate enough for engineering use?

    Yes. The factor 101.325 is exact by convention. Accuracy then depends only on your input and chosen rounding.

    Does the tool support scientific notation?

    Yes. Use the Notation selector to switch between fixed and scientific formats.

    Can I share a pre-filled calculation?

    Click “Share URL” to copy a link that preserves the current input, decimals, and notation.

    Will it work without JavaScript?

    Yes. The form submits to the server for a fallback calculation and returns a formatted result.

    How do I reset everything?

    Use the Reset button to clear inputs, output, and in-page history.

    Related Calculators


    Square Inches to Square Centimeters Converter Calculator
    Liters to Gallons Converter Calculator
    Teaspoons to Milliliters Converter Calculator
    Celsius to Kelvin Converter Calculator
    Days to Weeks Converter Calculator
    Months (Calendar) to Years Converter Calculator
    Years to Months (Calendar) Converter Calculator
    Milliseconds to Seconds Converter Calculator
    PSI to Pascals Converter Calculator
    kPa to Atmospheres Converter Calculator
    BTU to Kilojoules Converter Calculator
    Kilowatts to BTU per Hour Converter Calculator

    Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.