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Force converter

attonewton to femtonewton

Convert attonewton (aN) to femtonewton (fN). Use an editable force converter, conversion formula, and reference table.

0.001

1 aN = 0.001 fN

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Conversion formula

fN = aN × 0.001

One attonewton equals 0.001 femtonewton. Multiply your value in attonewton by this factor to get femtonewton. For the reverse conversion, divide by the same factor.

Worked example

To convert 5 attonewton:
5 × 0.001 = 0.005 fN

Conversion table

attonewton (aN)femtonewton (fN)
0.010.00001
0.10.0001
10.001
20.002
50.005
100.01
250.025
500.05
1000.1
10001

About these measurements

Force describes an interaction that can change motion.

The base reference used here is the newton. One attonewton is 1e-18 base units; one femtonewton is 1e-15 base units.

Important distinctions

Gravitational force units use standard gravity, 9.80665 m/s².

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 aN to fN?

Multiply the quantity in aN by 0.001. You can also type the value into the converter above.

Can I reverse the conversion?

Yes. Use the swap button or open the femtonewton to attonewton 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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