A desktop publishing point is 1/72 inch.
Points to Zettameters Converter — pt to Zm
Convert Point (pt) to Zettameter (Zm) using the exact conversion factor (1 point = 3.527778e-25 zettameter). See the formula, worked examples, and conversion table.
Points to Zettameters converter
Converter
Length Converter
Convert SI, imperial, US customary, astronomical, scientific, and historical length units.
Context values
Some unit families need one extra value for a physically accurate result.
Zettameter is 1e+21 meter units.
Result = input x 0.0003527777778 / 1e+21.
Length uses the meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Points to Zettameters
Point and Zettameter both measure length. Specifically: A desktop publishing point is 1/72 inch, and zettameter is 1e+21 meter units.
Formula
zettameters = points × 3.527778e-25
This factor comes from each unit's defined relationship to the category's base unit: 1 point equals 0.0003527777778 base units, and 1 zettameter equals 1e+21 base units, so dividing one by the other gives the direct point-to-zettameter factor of 3.527778e-25.
Simple example
1 pt × 3.527778e-25 = 3.527778e-25 Zm
1 point = 3.527778e-25 zettameters.
Real-world example
10 pt × 3.527778e-25 = 3.527778e-24 Zm
10 points = 3.527778e-24 zettameters.
Conversion table
| Point (pt) | Zettameter (Zm) |
|---|---|
| 1 pt | 3.527778e-25 Zm |
| 5 pt | 1.763889e-24 Zm |
| 10 pt | 3.527778e-24 Zm |
| 21.0975 pt | 7.442729e-24 Zm |
| 42.195 pt | 1.488546e-23 Zm |
| 100 pt | 3.527778e-23 Zm |
Reverse conversion: Zettameter to Point
3.527778e-25 Zm × 2.834646e+24 = 1.000000063 pt
3.527778e-25 zettameters = 1.000000063 points.
points = zettameters × 2.834646e+24
For a page dedicated to this direction, see Zettameter to Point.
Understanding the Point (pt)
A desktop publishing point is 1/72 inch.
Understanding the Zettameter (Zm)
Zettameter is 1e+21 meter units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many zettameters are in 1 point?
1 point equals 3.527778e-25 zettameters, using the exact defined conversion factor rather than an estimate.
How do I convert point to zettameter?
Multiply the point value by 3.527778e-25. The converter above does this instantly to whatever precision you set.
How do I convert zettameter back to point?
Use the reverse factor: 1 zettameter equals 2.834646e+24 points. You can also use the swap control in the converter above to flip the direction instantly.
What is a point?
Point (pt) is a unit of length.
What is a zettameter?
Zettameter (Zm) is a unit of length.
Is the point to zettameter conversion exact?
Yes. Both point and zettameter are defined by fixed standards rather than physical artifacts, so the factor of 3.527778e-25 used above is exact to as many digits as you choose to display.