Millimetres to nanometres converter
Nanometres (nm)
1 millimetre = 1,000,000 nanometres
How to convert millimetres to nanometres
nm = mm × 1000000
Multiply the number of millimetres by 1000000 to get nanometres. Going the other way, divide by 1000000 (or multiply by 0.000001).
One millimetre is exactly defined as 1000000 nanometres (to 12 significant figures), and one nanometre is 0.000001 millimetres.
Worked examples
- Convert 5 millimetres: 5 × 1000000 = 5,000,000 5,000,000 nanometres.
- Convert 12.5 millimetres: 12.5 × 1000000 = 12,500,000 12,500,000 nanometres.
- Convert 250 millimetres: 250 × 1000000 = 250,000,000 250,000,000 nanometres.
Quick-reference table
| mm | nm |
|---|---|
| 1 | 1,000,000 |
| 2 | 2,000,000 |
| 3 | 3,000,000 |
| 5 | 5,000,000 |
| 10 | 10,000,000 |
| 15 | 15,000,000 |
| 20 | 20,000,000 |
| 25 | 25,000,000 |
| 50 | 50,000,000 |
| 75 | 75,000,000 |
| 100 | 100,000,000 |
| 1,000 | 1,000,000,000 |
| nm | mm |
|---|---|
| 1 | 0.000001 |
| 2 | 0.000002 |
| 3 | 0.000003 |
| 5 | 0.000005 |
| 10 | 0.00001 |
| 15 | 0.000015 |
| 20 | 0.00002 |
| 25 | 0.000025 |
| 50 | 0.00005 |
| 75 | 0.000075 |
| 100 | 0.0001 |
| 1,000 | 0.001 |
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Frequently asked questions
How many nanometres are in 1 millimetre?
1 millimetre equals 1,000,000 nanometres.
What is the formula to convert millimetres to nanometres?
Use nm = mm × 1000000. Multiply the number of millimetres by 1000000 to get nanometres. Going the other way, divide by 1000000 (or multiply by 0.000001).
What is 100 millimetres in nanometres?
100 millimetres is 100,000,000 nanometres.