Points to Micrometers Converter
Enter the length in points below to convert it to micrometers.
Convert Points to Micrometers
Enter a value in points (pt) to convert to micrometers (µm).
Points to Micrometers Conversion Chart (1–40 Continuous)
Continuous 1 to 40 points lookup table with exact decimals and reduced nearest 1/64 fractions. Highlighted rows mark common shop and ruler values.
| Points (pt) | Decimal (µm) | Fraction — Nearest 1/64 (Reduced) | Nearest 1/16 (Tape) |
|---|---|---|---|
1 pt★ Common | 352.777778 µm | 352 25/32 µm | 352 3/4 µm |
2 pt★ Common | 705.555556 µm | 705 9/16 µm | 705 9/16 µm |
3 pt★ Common | 1,058.333333 µm | 1058 21/64 µm | 1058 5/16 µm |
4 pt | 1,411.111111 µm | 1411 7/64 µm | 1411 1/8 µm |
5 pt★ Common | 1,763.888889 µm | 1763 57/64 µm | 1763 7/8 µm |
6 pt★ Common | 2,116.666667 µm | 2116 43/64 µm | 2116 11/16 µm |
7 pt | 2,469.444444 µm | 2469 7/16 µm | 2469 7/16 µm |
8 pt★ Common | 2,822.222222 µm | 2822 7/32 µm | 2822 1/4 µm |
9 pt | 3,175 µm | 3175 µm | 3175 µm |
10 pt★ Common | 3,527.777778 µm | 3527 25/32 µm | 3527 3/4 µm |
11 pt | 3,880.555556 µm | 3880 9/16 µm | 3880 9/16 µm |
12 pt★ Common | 4,233.333333 µm | 4233 21/64 µm | 4233 5/16 µm |
How to Convert Points to Micrometers
To convert points to micrometers, multiply the length by the following conversion ratio: 352.7777778 micrometers/point.
Since one point is equal to 352.7777778 micrometers, you can use this simple formula to convert:
The length in micrometers is equal to the length in points multiplied by 352.7777778.
For example, here's how to convert 5 points to micrometers using the formula above.
How Many Micrometers Are in a Point?
There are 352.7777778 micrometers in a point, which is why we use this value in the formula above.
Our point fraction and decimal calculator can convert points and micrometers, and it automatically converts the results to US customary, imperial, and SI metric values.
Points and micrometers are both units used to measure length. Keep reading to learn more about each unit.
How to Convert Points 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 0.069444 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 points (pt) into fractional inches:
- Find the decimal inches result: Convert 5 pt to inches to get 0.069444 in.
- Separate the whole inches from the decimal part: Keep the whole number 0 aside, leaving the decimal remainder 0.069444.
- Multiply the decimal part by your desired fraction denominator (16, 32, or 64) and round half up: Multiply 0.069444 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 Point?
A point is a unit of length equal to 0.000352778 meters (m), the base unit for length. Desktop publishing point equal to 1/72 of an international inch (0.35278 mm). [1]
The point is classified as a standard unit of length. Points can be abbreviated as pt; for example, 1 point can be written as 1 pt.
When working with points (pt) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, points (pt) are widely used across fine-tolerance laboratory, analytical, and micro-scale length measurements within international standard workflows, engineering documentation, and technical data sheets.
What Is a Micrometer?
A micrometer is a unit of length equal to 1/1,000,000 of a meter (0.000001 m). One millionth of a meter (10⁻⁶ m), also known as a micron. [2]
The micrometer is classified as a metric and SI-compatible unit of length. Micrometers can be abbreviated as µm; for example, 1 micrometer can be written as 1 µm.
In the metric system, "micro" is the standard SI prefix for millionths, or 10⁻⁶. This makes the micrometer (µm) a convenient decimal multiple of the meter (m).
In practice, micrometers (µm) 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 points (pt) and micrometers (µm), keep full floating-point precision (1 pt = 352.7777778 µm; 1 µm = 0.0028346 pt) during intermediate calculations and round only the final micrometer figure to match your instrument tolerance.
More Point & Micrometer Conversions
Need to calculate in the opposite direction? Use our micrometers to points calculator to switch your starting unit immediately. You can also explore related tools such as converting micrometers to points, converting inches to micrometers, or converting points to inches.
Convert from Points
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Length Metrology Standard — Points (pt) to Micrometers (µm)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Point (Typography) (pt) & Micrometer (Micron) (µm)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (pt to µm)