Inches to Nanometers Converter
Enter the length in inches below to convert it to nanometers.
Convert Inches to Nanometers
Enter a value in inches (in) to convert to nanometers (nm).
Inches to Nanometers Conversion Chart (1–40 Continuous)
Continuous 1 to 40 inches lookup table with exact decimals and reduced nearest 1/64 fractions. Highlighted rows mark common shop and ruler values.
| Inches (in) | Decimal (nm) | Fraction — Nearest 1/64 (Reduced) | Nearest 1/16 (Tape) |
|---|---|---|---|
1 in★ Common | 25,400,000 nm | 25400000 nm | 25400000 nm |
2 in★ Common | 50,800,000 nm | 50800000 nm | 50800000 nm |
3 in★ Common | 76,200,000 nm | 76200000 nm | 76200000 nm |
4 in | 101,600,000 nm | 101600000 nm | 101600000 nm |
5 in★ Common | 127,000,000 nm | 127000000 nm | 127000000 nm |
6 in★ Common | 152,400,000 nm | 152400000 nm | 152400000 nm |
7 in | 177,800,000 nm | 177800000 nm | 177800000 nm |
8 in★ Common | 203,200,000 nm | 203200000 nm | 203200000 nm |
9 in | 228,600,000 nm | 228600000 nm | 228600000 nm |
10 in★ Common | 254,000,000 nm | 254000000 nm | 254000000 nm |
11 in | 279,400,000 nm | 279400000 nm | 279400000 nm |
12 in★ Common | 304,800,000 nm | 304800000 nm | 304800000 nm |
How to Convert Inches to Nanometers
To convert inches to nanometers, multiply the length by the following conversion ratio: 25,400,000 nanometers/inch.
Since one inch is equal to 25,400,000 nanometers, you can use this simple formula to convert:
The length in nanometers is equal to the length in inches multiplied by 25,400,000.
For example, here's how to convert 5 inches to nanometers using the formula above.
How Many Nanometers Are in an Inch?
There are 25,400,000 nanometers in an inch, which is why we use this value in the formula above.
Our inch fraction and decimal calculator can convert inches and nanometers, and it automatically converts the results to US customary, imperial, and SI metric values.
Inches and nanometers are both units used to measure length. Keep reading to learn more about each unit.
How to Convert Inches 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 5 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 5 inches (in) into fractional inches:
- Find the decimal inches result: Convert 5 in to inches to get 5 in.
- Separate the whole inches from the decimal part: Keep the whole number 5 aside, leaving the decimal remainder 0.
- Multiply the decimal part by your desired fraction denominator (16, 32, or 64) and round half up: Multiply 0 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 an Inch?
An inch is a unit of length equal to 1/12 of a foot or 1/36 of a yard. Because the international yard is legally defined as exactly 0.9144 meters under the 1959 International Yard and Pound Agreement, one inch equals exactly 2.54 centimeters (25.4 millimeters or 25,400,000 nanometers). [1]
The inch is a US customary and imperial unit of length. Inches can be abbreviated as in; for example, 1 inch can be written as 1 in.
Inches can also be denoted using the ″ symbol, otherwise known as a double prime. Often a double quote (") is used instead of a double prime for convenience. A double prime is commonly used to express 1 in as 1″.
The standard ruler is 12 inches long and is a common tool for measuring a length in inches. Another frequently used tool to perform measurements in inches is a tape measure, which commonly comes in lengths from 6' to 35'. Other devices used to measure in inches include scales, calipers, measuring wheels, micrometers, yardsticks, and even lasers.
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. [2]
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.
When converting length between inches (in) and nanometers (nm), keep full floating-point precision (1" = 25,400,000 nm; 1 nm = 0.000000039 in) during intermediate calculations and round only the final nanometer figure to match your instrument tolerance.
More Inch & Nanometer Conversions
Need to calculate in the opposite direction? Use our nanometers to inches converter (nm to in) to switch your starting unit immediately. You can also explore related tools such as converting meters to nanometers, converting millimeters to nanometers, or converting inches to centimeters.
Convert from Inches
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Length Metrology Standard — Inches (in) to Nanometers (nm)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Inch (in) & Nanometer (nm)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (in to nm)