Points to Inches Converter
Enter the length in points below to convert it to inches.
Convert Points to Inches
Enter a value in points (pt) to convert to inches (in).
Points to Inches 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 (in) | Fraction — Nearest 1/64 (Reduced) | Nearest 1/16 (Tape) |
|---|---|---|---|
1 pt★ Common | 0.013889 in | 1/64 in | 0 in |
2 pt★ Common | 0.027778 in | 1/32 in | 0 in |
3 pt★ Common | 0.041667 in | 3/64 in | 1/16 in |
4 pt | 0.055556 in | 1/16 in | 1/16 in |
5 pt★ Common | 0.069444 in | 1/16 in | 1/16 in |
6 pt★ Common | 0.083333 in | 5/64 in | 1/16 in |
7 pt | 0.097222 in | 3/32 in | 1/8 in |
8 pt★ Common | 0.111111 in | 7/64 in | 1/8 in |
9 pt | 0.125 in | 1/8 in | 1/8 in |
10 pt★ Common | 0.138889 in | 9/64 in | 1/8 in |
11 pt | 0.152778 in | 5/32 in | 1/8 in |
12 pt★ Common | 0.166667 in | 11/64 in | 3/16 in |
How to Convert Points to Inches
To convert points to inches, multiply the length by the following conversion ratio: 0.0138889 inches/point.
Since one point is equal to 0.0138889 inches, you can use this simple formula to convert:
The length in inches is equal to the length in points multiplied by 0.0138889.
For example, here's how to convert 12 points to inches using the formula above.
How Many Inches Are in a Point?
There are 0.0138889 inches in a point, which is why we use this value in the formula above.
Our point fraction and decimal calculator can convert points and inches, and it automatically converts the results to US customary, imperial, and SI metric values.
Points and inches 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 0.166667 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 12 points (pt) into fractional inches:
- Find the decimal inches result: Convert 12 pt to inches to get 0.166667 in.
- Separate the whole inches from the decimal part: Keep the whole number 0 aside, leaving the decimal remainder 0.166667.
- Multiply the decimal part by your desired fraction denominator (16, 32, or 64) and round half up: Multiply 0.166667 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 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). [2]
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.
When converting length between points (pt) and inches (in), keep full floating-point precision (1 pt = 0.0138889 in; 1 in = 72 pt) during intermediate calculations and round only the final inch figure to match your instrument tolerance.
More Point & Inch Conversions
Need to calculate in the opposite direction? Use our inches to points calculator to switch your starting unit immediately. You can also explore related tools such as converting inches to points, converting centimeters to inches, or converting millimeters to inches.
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Length Metrology Standard — Points (pt) to Inches (in)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Point (Typography) (pt) & Inch (in)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (pt to in)