nm to um Converter - Nanometer to Micrometer

Nanometer (nm) to Micrometer (μm) (um)

Direct answer

1 nm = 0.001 um

um = nm × 0.001

Converter

Input

Result

0.001um

um = nm × 0.001

nm = um × 1,000

Example: 10 nm = 10 × 0.001 = 0.01 um.

Express both nm and um in the same base unit m (meter), then cancel the shared base unit.

1
Rewrite nm in the base unit
$1 nm = 1 \times 1 0^{- 9} m$
2
Rewrite um in the base unit
$1 um = 0.000001 m$
3
Forward conversion
$1 nm = \frac{1 \times 1 0 ^{- 9} m}{0.000001 m} \times 1 um = \frac{1 \times 1 0 ^{- 9}}{0.000001} um = 0.001 um$
4
Reverse conversion
$1 um = \frac{0.000001 m}{1 \times 1 0 ^{- 9} m} \times 1 nm = \frac{0.000001}{1 \times 1 0 ^{- 9}} nm = 1, 000 nm$

A guarded explanation for this pair page covering definition, principle, assumptions, and cautions.

Guarded output

AI text is for interpretation only. The page calculator remains the source of truth for numeric results.

1 nm = 0.001 um.

10 nm = 0.01 um.

100 nm = 0.1 um.

Use um = nm × 0.001.

1 um = 1,000 nm.

Use the conversion factor and round the result to the precision required by your calculation.