Femtometers to Picometers Converter
Enter the length in femtometers below to convert it to picometers.
Convert Femtometers to Picometers
Enter a value in femtometers (fm) to convert to picometers (pm).
Femtometers to Picometers Conversion Chart (1–40 Continuous)
Continuous 1 to 40 femtometers lookup table with exact decimals and reduced nearest 1/64 fractions. Highlighted rows mark common shop and ruler values.
| Femtometers (fm) | Decimal (pm) | Fraction — Nearest 1/64 (Reduced) | Nearest 1/16 (Tape) |
|---|---|---|---|
1 fm★ Common | 0.001 pm | 0 pm | 0 pm |
2 fm★ Common | 0.002 pm | 0 pm | 0 pm |
3 fm★ Common | 0.003 pm | 0 pm | 0 pm |
4 fm | 0.004 pm | 0 pm | 0 pm |
5 fm★ Common | 0.005 pm | 0 pm | 0 pm |
6 fm★ Common | 0.006 pm | 0 pm | 0 pm |
7 fm | 0.007 pm | 0 pm | 0 pm |
8 fm★ Common | 0.008 pm | 1/64 pm | 0 pm |
9 fm | 0.009 pm | 1/64 pm | 0 pm |
10 fm★ Common | 0.01 pm | 1/64 pm | 0 pm |
11 fm | 0.011 pm | 1/64 pm | 0 pm |
12 fm★ Common | 0.012 pm | 1/64 pm | 0 pm |
How to Convert Femtometers to Picometers
To convert femtometers to picometers, multiply the length by the following conversion ratio: 0.001 picometers/femtometer.
Since one femtometer is equal to 0.001 picometers, you can use this simple formula to convert:
The length in picometers is equal to the length in femtometers multiplied by 0.001.
For example, here's how to convert 5 femtometers to picometers using the formula above.
How Many Picometers Are in a Femtometer?
There are 0.001 picometers in a femtometer, which is why we use this value in the formula above.
Our femtometer fraction and decimal calculator can convert femtometers and picometers, and it automatically converts the results to US customary, imperial, and SI metric values.
Femtometers and picometers are both units used to measure length. Keep reading to learn more about each unit.
How to Convert Femtometers 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 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 femtometers (fm) into fractional inches:
- Find the decimal inches result: Convert 5 fm to inches to get 0 in.
- Separate the whole inches from the decimal part: Keep the whole number 0 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 a Femtometer?
A femtometer is a unit of length equal to 1e-15 meters (m), the base unit for length. One quadrillionth of a meter (10⁻¹⁵ m), used in nuclear physics. [1]
The femtometer is classified as a metric and SI-compatible unit of length. Femtometers can be abbreviated as fm; for example, 1 femtometer can be written as 1 fm.
In the metric system, "femto" is the standard SI prefix for quadrillionths, or 10⁻¹⁵. This makes the femtometer (fm) a convenient decimal multiple of the meter (m).
In practice, femtometers (fm) are widely used across fine-tolerance laboratory, analytical, and micro-scale length measurements within SI metric workflows, engineering documentation, and technical data sheets.
What Is a Picometer?
A picometer is a unit of length equal to 1/1,000,000,000,000 of a meter (1e-12 m). One trillionth of a meter (10⁻¹² m), used for atomic radii. [2]
The picometer is classified as a metric and SI-compatible unit of length. Picometers can be abbreviated as pm; for example, 1 picometer can be written as 1 pm.
In the metric system, "pico" is the standard SI prefix for trillionths, or 10⁻¹². This makes the picometer (pm) a convenient decimal multiple of the meter (m).
In practice, picometers (pm) are widely used across fine-tolerance laboratory, analytical, and micro-scale length measurements within SI metric workflows, engineering documentation, and technical data sheets.
When converting length between femtometers (fm) and picometers (pm), keep full floating-point precision (1 fm = 0.001 pm; 1 pm = 1,000 fm) during intermediate calculations and round only the final picometer figure to match your instrument tolerance.
More Femtometer & Picometer Conversions
Need to calculate in the opposite direction? Use our picometers to femtometers calculator to switch your starting unit immediately. You can also explore related tools such as converting picometers to femtometers, converting centimeters to inches, or converting inches to centimeters.
Convert from Femtometers
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Length Metrology Standard — Femtometers (fm) to Picometers (pm)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Femtometer (Fermi) (fm) & Picometer (pm)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (fm to pm)