Exagrams to Zettagrams Converter — Eg to Zg

Convert Exagram (Eg) to Zettagram (Zg) using the exact conversion factor (1 exagram = 0.001 zettagram). See the formula, worked examples, and conversion table.

Exagrams to Zettagrams converter

Converter

Mass/Weight Converter

Convert SI mass, imperial weight, jewelry, atomic, and astronomy mass units.

Result 1 exagram = 0.001 zettagram
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From definition

Exagram is 1000000000000000000 gram units.

To definition

Zettagram is 1e+21 gram units.

Formula

Result = input x 1e+15 / 1e+18.

Mass uses the kilogram as the base unit.

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About Converting Exagrams to Zettagrams

Weight conversions between Exagram and Zettagram come up constantly in everyday commerce, shipping, and cooking, since US packaging is usually labeled in pounds while most of the rest of the world uses kilograms. Specifically: Exagram is 1000000000000000000 gram units, and zettagram is 1e+21 gram units.

Formula

zettagrams = exagrams × 0.001

This factor comes from each unit's defined relationship to the category's base unit: 1 exagram equals 1e+15 base units, and 1 zettagram equals 1e+18 base units, so dividing one by the other gives the direct exagram-to-zettagram factor of 0.001.

Simple example

1 Eg × 0.001 = 0.001 Zg

1 exagram = 0.001 zettagrams.

Real-world example

50 Eg × 0.001 = 0.05 Zg

50 exagrams = 0.05 zettagrams.

Conversion table

Exagram (Eg)Zettagram (Zg)
1 Eg0.001 Zg
5 Eg0.005 Zg
10 Eg0.01 Zg
25 Eg0.025 Zg
50 Eg0.05 Zg
100 Eg0.1 Zg

Reverse conversion: Zettagram to Exagram

0.001 Zg × 1000 = 1 Eg

0.001 zettagrams = 1 exagram.

exagrams = zettagrams × 1000

For a page dedicated to this direction, see Zettagram to Exagram.

Understanding the Exagram (Eg)

Exagram is 1000000000000000000 gram units.

Understanding the Zettagram (Zg)

Zettagram is 1e+21 gram units.

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Frequently asked questions

How many zettagrams are in 1 exagram?

1 exagram equals 0.001 zettagrams, using the exact defined conversion factor rather than an estimate.

How do I convert exagram to zettagram?

Multiply the exagram value by 0.001. The converter above does this instantly to whatever precision you set.

How do I convert zettagram back to exagram?

Use the reverse factor: 1 zettagram equals 1,000 exagrams. You can also use the swap control in the converter above to flip the direction instantly.

What is a exagram?

Exagram (Eg) is a unit of mass/weight.

What is a zettagram?

Zettagram (Zg) is a unit of mass/weight.

Is the exagram to zettagram conversion exact?

Yes. Both exagram and zettagram are defined by fixed standards rather than physical artifacts, so the factor of 0.001 used above is exact to as many digits as you choose to display.