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Length converter

nanometer to attometer

Convert nanometer (nm) to attometer (am). Use an editable length converter, conversion formula, and reference table.

1,000,000,000

1 nm = 1,000,000,000 am

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Conversion formula

am = nm × 1,000,000,000

One nanometer equals 1,000,000,000 attometer. Multiply your value in nanometer by this factor to get attometer. For the reverse conversion, divide by the same factor.

Worked example

To convert 5 nanometer:
5 × 1,000,000,000 = 5,000,000,000 am

Conversion table

nanometer (nm)attometer (am)
0.0110,000,000
0.1100,000,000
11,000,000,000
22,000,000,000
55,000,000,000
1010,000,000,000
2525,000,000,000
5050,000,000,000
100100,000,000,000
10001e+12

About these measurements

Length measures the distance between two points.

The base reference used here is the meter. One nanometer is 1e-9 base units; one attometer is 1e-18 base units.

Important distinctions

International feet and inches are used. Survey feet are not included.

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 nm to am?

Multiply the quantity in nm by 1,000,000,000. You can also type the value into the converter above.

Can I reverse the conversion?

Yes. Use the swap button or open the attometer to nanometer 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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