Nanometers to Millimeters Converter
Enter the length in nanometers below to convert it to millimeters.
Convert Nanometers to Millimeters
Enter a value in nanometers (nm) to convert to millimeters (mm).
Nanometers to Millimeters Conversion Chart (1–40 Continuous)
Continuous 1 to 40 nanometers lookup table with exact decimals and reduced nearest 1/64 fractions. Highlighted rows mark common shop and ruler values.
| Nanometers (nm) | Decimal (mm) | Fraction — Nearest 1/64 (Reduced) | Nearest 1/16 (Tape) |
|---|---|---|---|
1 nm★ Common | 0.000001 mm | 0 mm | 0 mm |
2 nm★ Common | 0.000002 mm | 0 mm | 0 mm |
3 nm★ Common | 0.000003 mm | 0 mm | 0 mm |
4 nm | 0.000004 mm | 0 mm | 0 mm |
5 nm★ Common | 0.000005 mm | 0 mm | 0 mm |
6 nm★ Common | 0.000006 mm | 0 mm | 0 mm |
7 nm | 0.000007 mm | 0 mm | 0 mm |
8 nm★ Common | 0.000008 mm | 0 mm | 0 mm |
9 nm | 0.000009 mm | 0 mm | 0 mm |
10 nm★ Common | 0.00001 mm | 0 mm | 0 mm |
11 nm | 0.000011 mm | 0 mm | 0 mm |
12 nm★ Common | 0.000012 mm | 0 mm | 0 mm |
How to Convert Nanometers to Millimeters
To convert nanometers to millimeters, multiply the length by the following conversion ratio: 0.000001 millimeters/nanometer.
Since one nanometer is equal to 0.000001 millimeters, you can use this simple formula to convert:
The length in millimeters is equal to the length in nanometers multiplied by 0.000001.
For example, here's how to convert 1000000 nanometers to millimeters using the formula above.
How Many Millimeters Are in a Nanometer?
There are 0.000001 millimeters in a nanometer, which is why we use this value in the formula above.
Our nanometer fraction and decimal calculator can convert nanometers and millimeters, and it automatically converts the results to US customary, imperial, and SI metric values.
Nanometers and millimeters are both units used to measure length. Keep reading to learn more about each unit.
How to Convert Nanometers to Fractional Inches (1/16″, 1/32″ & 1/64″)
Plain-language method for turning decimal inches into a standard tape-measure or machinist ruler fraction
Calculators give you a decimal number (such as 0.03937 in), but tape measures and woodworking rulers are marked in binary fractions of an inch—most commonly 1/16″ on carpenter tapes, 1/32″ on fine woodworking rules, and 1/64″ on machinist scales.
Here is the step-by-step worked example for converting 1000000 nanometers (nm) into fractional inches:
- Find the decimal inches result: Convert 1000000 nm to inches to get 0.03937 in.
- Separate the whole inches from the decimal part: Keep the whole number 0 aside, leaving the decimal remainder 0.03937.
- Multiply the decimal part by your desired fraction denominator (16, 32, or 64) and round half up: Multiply 0.03937 by 16, 32, or 64, then round to the nearest whole number (values ending in .5 round up).
- Reduce the fraction to lowest terms: If the rounded top number (numerator) is even, divide both top and bottom by 2 (or their Greatest Common Divisor) until the top number is odd, then combine with your whole inches.
What Is a Nanometer?
One nanometer is equal to one-billionth (1/1,000,000,000) of a meter, which is defined as the distance light travels in a vacuum in a 1/299,792,458 second time interval. [1]
The nanometer, or nanometre, is a multiple of the meter, the SI base unit for length. In the metric system, "nano" is the prefix for billionths, or 10⁻⁹. Nanometers can be abbreviated as nm; for example, 1 nanometer can be written as 1 nm.
Because 1 inch equals 25.4 millimeters and 1 millimeter equals 1,000,000 nanometers, there are exactly 25,400,000 nanometers in 1 inch (and 10 Angstroms in 1 nanometer).
The nanometer is an extremely small unit of length measurement, often used to measure things that are very small, such as the wavelengths of visible light (400 nm to 700 nm), the transistors and electrical pathways in computer processors, and thin-film nanotechnology.
What Is a Millimeter?
A millimeter is a metric unit of length equal to one-thousandth (1/1,000) of a meter or one-tenth (1/10) of a centimeter. By international definition, there are exactly 25.4 millimeters in one inch. [2]
The millimeter, or millimetre, is a standard SI metric unit of length. Millimeters can be abbreviated as mm; for example, 1 millimeter can be written as 1 mm.
In the metric system, "milli" is the prefix for thousandths, or 10⁻³. Millimeters are the default unit on mechanical engineering drawings and architectural blueprints worldwide.
Millimeters are commonly measured using metric steel rules, digital vernier calipers, depth gauges, and micrometers in CNC machining, 3D printing, automotive fasteners, and precision manufacturing.
When converting length between nanometers (nm) and millimeters (mm), keep full floating-point precision (1 nm = 0.000001 mm; 1 mm = 1,000,000 nm) during intermediate calculations and round only the final millimeter figure to match your instrument tolerance.
More Nanometer & Millimeter Conversions
Need to calculate in the opposite direction? Use our millimeters to nanometers converter (mm to nm) to switch your starting unit immediately. You can also explore related tools such as converting inches to millimeters, converting micrometers to millimeters, or converting nanometers to inches.
Convert from Nanometers
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Length Metrology Standard — Nanometers (nm) to Millimeters (mm)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Nanometer (nm) & Millimeter (mm)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (nm to mm)