Length and Area
mtonm
Convert metres (m) to nanometres (nm).
Factor1 m = 1e+9 nm
Converter
m
Accepts numbers or expressions, e.g. 150 + 14.7
Result
nm
Rendered to 6 significant figures.
Formula
Formula
nm = m × 1e+9
Multiply any value in metres by 1e+9 to obtain the value in nanometres.
Worked example
Convert 1 m to nm.
- 01Start with 1 m.
- 02Multiply by the conversion factor: 1 × 1e+9 = 1e+9 nm.
Result1 m = 1e+9 nm
Conversion table
| m | nm |
|---|---|
| 1 | 1e+9 |
| 2 | 2e+9 |
| 5 | 5e+9 |
| 10 | 1e+10 |
| 20 | 2e+10 |
| 50 | 5e+10 |
| 100 | 1e+11 |
| 200 | 2e+11 |
| 500 | 5e+11 |
| 1000 | 1e+12 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from m to nm?
1 m equals 1e+9 nm. To convert, multiply the value in metres by 1e+9.
How do I convert 1 m to nm?
1 m = 1e+9 nm. For any value, multiply by 1e+9.
How do I convert nm back to m?
Divide by the same factor — or equivalently, multiply by 1e-9. So 1 nm = 1e-9 m.
When would I need to convert metre to nanometre?
Length conversions appear in piping, layout, and mechanical drawings — particularly when reconciling imperial fittings or instrument lengths with metric plant drawings.
Is the conversion exact?
Yes. Both m and nm are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).