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To convert nm to meters: multiply by 10⁻⁹. To convert nm to micrometers: divide by 1,000.
1 nm = 10⁻⁹ m = 10 Å = 1,000 pm = 10⁻³ µm. One micrometer equals 1,000 nanometers.
For example, 1 Nanometer (nm) = 1.000000e-8 Decimeter (dm).
| Nanometer (nm) | Decimeter (dm) |
|---|---|
| 0.1 | 1.000000e-9 |
| 0.5 | 5.000000e-9 |
| 1 | 1.000000e-8 |
| 2 | 2.000000e-8 |
| 5 | 5.000000e-8 |
| 10 | 1.000000e-7 |
| 25 | 2.500000e-7 |
| 50 | 5.000000e-7 |
| 100 | 0.000001 |
| 500 | 0.000005 |
| 1000 | 0.00001 |
The nanometer is a unit of length equal to 10⁻⁹ meters, or one billionth of a meter.
1 nm = 10⁻⁹ m = 10 Å = 1,000 pm = 10⁻³ µm. One micrometer equals 1,000 nanometers.
To convert nm to meters: multiply by 10⁻⁹. To convert nm to micrometers: divide by 1,000.
Semiconductor chip feature sizes (5 nm, 3 nm transistors), UV light wavelengths, virus dimensions, and thin-film coatings.
A human hair is about 80,000–100,000 nm thick. The COVID-19 virus is approximately 100 nm in diameter.
Confusing nanometers with micrometers — they differ by a factor of 1,000. Be careful with nm vs. µm in specs.
Visible light wavelengths (380–700 nm) are a great anchor: red light ≈ 700 nm, violet light ≈ 380 nm.
The decimeter is a unit of length equal to one tenth of a meter (10⁻¹ m), or 10 centimeters.
1 dm = 0.1 m = 10 cm = 100 mm. One cubic decimeter (dm³) equals exactly 1 liter.
To convert dm to meters: divide by 10. To convert dm to inches: multiply by 3.937.
The cubic decimeter (dm³ = 1 liter) is its most important practical application, linking length to volume.
The decimeter's greatest legacy is the liter — 1 liter is defined as exactly 1 dm³.
Rarely encountered, so people sometimes forget the conversion: 1 dm = 10 cm, not 100 cm.
Remember: deci = 10⁻¹. The decimeter's main utility is connecting length to volume via 1 L = 1 dm³.



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