---
title: "Nanometers to Inches — nm to in converter"
description: "1 nanometer = 3.937 × 10^-8 inches. Convert nanometers to inches with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/nanometers-to-inches/
site: "At One Place"
---

# Nanometers to inches

**1 nanometer in inches: 1 nm = 3.937 × 10^-8 in**

in = nm × 3.937007874 × 10^-8

To convert nanometers to inches, multiply by 3.937007874 × 10^-8. The table below gives the values people look up most often, and the converter works for any number.

## Nanometers to inches table

*Common nanometer values converted to inches.*

| Nanometers | Inches |
| --- | --- |
| 1 nm | 3.937 × 10^-8 |
| 2 nm | 7.874 × 10^-8 |
| 3 nm | 1.181 × 10^-7 |
| 4 nm | 1.575 × 10^-7 |
| 5 nm | 1.969 × 10^-7 |
| 10 nm | 3.937 × 10^-7 |
| 15 nm | 5.906 × 10^-7 |
| 20 nm | 7.874 × 10^-7 |
| 25 nm | 9.843 × 10^-7 |
| 30 nm | 0.000001181 |
| 40 nm | 0.000001575 |
| 50 nm | 0.000001969 |
| 75 nm | 0.000002953 |
| 100 nm | 0.000003937 |
| 250 nm | 0.000009843 |
| 500 nm | 0.00001969 |
| 1,000 nm | 0.00003937 |

## How the conversion works

The relationship is in = nm × 3.937007874 × 10^-8. Both units measure length, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.

## Common questions

### How many inches are in one nanometer?

One nanometer equals 3.937 × 10^-8 inches. in = nm × 3.937007874 × 10^-8.

### How do you convert nanometers to inches?

Use in = nm × 3.937007874 × 10^-8. So 10 nm is 3.937 × 10^-7 in.

### How many nanometers are in one inch?

One inch equals 25,400,000 nanometers, which is the reverse of the conversion above.

## Related pages

- [Inches to Nanometers](https://atoneplace.net/convert/inches-to-nanometers/)
- [Nanometers to Meters](https://atoneplace.net/convert/nanometers-to-meters/)
- [Nanometers to Kilometers](https://atoneplace.net/convert/nanometers-to-km/)
- [Nanometers to Centimeters](https://atoneplace.net/convert/nanometers-to-cm/)
- [Nanometers to Millimeters](https://atoneplace.net/convert/nanometers-to-mm/)
- [Nanometers to Miles](https://atoneplace.net/convert/nanometers-to-miles/)
- [Nanometers to Yards](https://atoneplace.net/convert/nanometers-to-yards/)
- [Nanometers to Feet](https://atoneplace.net/convert/nanometers-to-feet/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)