Convert Millimeter to Point
Convert millimeters to points instantly. 1 millimeter = 2.8346454907 point — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Point to Millimeter converter for the reverse conversion.
Units explained
Millimeter
A millimeter is a metric unit of length equal to one thousandth of a meter (1/1000 m). It is the standard small-scale unit in the SI system and is widely used wherever sub-centimeter precision matters.
The millimeter was defined alongside the meter when France adopted the metric system in 1795, using the standard SI prefix milli- (from Latin mille, "thousand") to denote one-thousandth.
Millimeters are used in engineering drawings, machining, manufacturing, paper sizes, rainfall measurement, and any context where dimensions below one centimeter need to be specified clearly. Most rulers worldwide are marked in millimeters.
Adopted in 1795 in France as part of the original metric system; standardized internationally by the Metre Convention in 1875 and confirmed in the SI in 1960.
Point
A point is a typographic unit equal to 1/72 of an inch (about 0.353 mm) in the PostScript point system. It is the standard unit for font sizes and typographic measurements in modern digital publishing.
The PostScript/Adobe point of exactly 1/72 inch was adopted in 1984 with the release of PostScript. This replaced earlier, slightly different typographic points (Didot, Truchet, Pica points) that had varied across regional printing traditions.
Points are used throughout typesetting, word processing, and design software for font sizes (typical body text is 10–12 pt) and small typographic dimensions. The web's standard typography unit, even when expressed in CSS as 1pt = 1.333px.
PostScript point of 1/72 inch defined by Adobe in 1984; predecessors include the Didot point (France, ~0.376 mm) and the Truchet/Pica systems.
Millimeter to Point conversion formula
The relationship between millimeters and points:
To convert millimeters to points, multiply the value in millimeters by 2.8346454907. To reverse, multiply points by 0.3527778.
How to use this converter
Type a value into the calculator. The result in points updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Point to Millimeter converter for the reverse direction.
Step-by-step: convert millimeters to points
- Write down the value in millimeters (mm).
- Multiply that value by the factor 2.8346454907.
- The product is the equivalent value in points (pt).
- To reverse, multiply the point value by 0.3527778.
Worked examples
Example 1 — Convert 1 mm to pt:
1 × 2.8346454907 = 2.8346454907 pt
Example 2 — Convert 100 mm to pt:
100 × 2.8346454907 = 283.4645490731 pt
Real-world example — Adjacent small-scale precision
One millimeter equals 1,000 points — the standard sub-millimeter precision conversion that materials engineers use whenever they switch between bulk material thickness specs (larger unit) and surface-finish characteristics (smaller unit).
1 mm × 2.8346454907 = 2.8346454907 pt
Real-world example — Adjacent metric sub-units
One millimeter equals 1,000 points. Engineers move between these scales constantly: PCB feature sizes in the larger unit, wire-bond diameters in the smaller.
1 mm × 2.8346454907 = 2.8346454907 pt
Millimeter to Point conversion table
Standard reference values for converting millimeters to points:
| Millimeter [mm] | Point [pt] |
|---|---|
| 0.01 | 0.0283464549 |
| 0.1 | 0.2834645491 |
| 1 | 2.8346454907 |
| 2 | 5.6692909815 |
| 3 | 8.5039364722 |
| 4 | 11.3385819629 |
| 5 | 14.1732274537 |
| 10 | 28.3464549073 |
| 20 | 56.6929098146 |
| 30 | 85.0393647219 |
| 40 | 113.3858196292 |
| 50 | 141.7322745365 |
| 100 | 283.4645490731 |
| 500 | 1417.3227453655 |
| 1000 | 2834.645490731 |
Frequently asked questions
How many points is 1 millimeter?
How do I convert millimeters to points?
How do I convert points back to millimeters?
How many points is 100 millimeters?
Popular length unit conversions
Convert Millimeter to other length units
Show all Millimeter conversions
Metric / SI (17 units)
Imperial / US Customary (27 units)
Nautical (1 units)
Astronomical (9 units)
Atomic / Physics (6 units)
Typographic (3 units)
Sources & references
Conversion factor (1 mm = 2.8346454907 pt) verified against the following authoritative sources:
- BIPM — The International System of Units (SI Brochure 9th ed.)
Official BIPM publication defining the seven SI base units (including the meter) and the rules for their use. The global authority on units of measurement.
- NIST — Guide to the SI
US National Institute of Standards and Technology reference covering the SI base and derived units with definitions and usage rules for US technical practice.
- NIST Special Publication 811 — Guide for the Use of the International System of Units
Detailed NIST guide covering exact conversion factors between SI and US customary units along with formatting and rounding conventions.
- NIST — Refinement of values for the yard and pound (Federal Register 1959)
The treaty (signed by US
- International Astronomical Union — System of Astronomical Constants
The IAU defines astronomical units including the AU (149597870700 m exactly) light-year and parsec used in astronomy and astrophysics.