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Pressure converter

femtopascal to millibar

Convert femtopascal (fPa) to millibar (mbar). Use an editable pressure converter, conversion formula, and reference table.

1e-17

1 fPa = 1e-17 mbar

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Conversion formula

mbar = fPa × 1e-17

One femtopascal equals 1e-17 millibar. Multiply your value in femtopascal by this factor to get millibar. For the reverse conversion, divide by the same factor.

Worked example

To convert 5 femtopascal:
5 × 1e-17 = 5e-17 mbar

Conversion table

femtopascal (fPa)millibar (mbar)
0.011e-19
0.11e-18
11e-17
22e-17
55e-17
101e-16
252.5e-16
505e-16
1001e-15
10001e-14

About these measurements

Pressure is force per unit of area.

The base reference used here is the pascal. One femtopascal is 1e-15 base units; one millibar is 100 base units.

Important distinctions

Gauge and absolute pressures must not be mixed. This converts units without changing the reference pressure.

Precision

The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.

Common questions

How do I convert fPa to mbar?

Multiply the quantity in fPa by 1e-17. You can also type the value into the converter above.

Can I reverse the conversion?

Yes. Use the swap button or open the millibar to femtopascal converter.

Reference

NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.

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