Convert Exagram to Gigagram
Convert exagrams to gigagrams instantly. 1 exagram = 1e+9 gigagram — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Gigagram to Exagram converter for the reverse conversion.
Units explained
Exagram
An exagram (Eg) equals 10^15 kilograms, or one quintillion grams.
From the SI prefix 'exa-' (from Greek 'hex', six, denoting the sixth power of 1000).
Confined to planetary- and atmospheric-scale mass discussions; never used in daily measurement.
The exa- prefix was adopted by the General Conference on Weights and Measures (CGPM) in 1975.
Gigagram
A gigagram (Gg) equals 10^6 kilograms, the same as 1,000 metric tons.
From the SI prefix 'giga-' (from Greek 'gigas', giant).
Bulk commodity, emissions, and freight accounting.
The giga- prefix entered the SI in 1960.
Exagram to Gigagram conversion formula
The relationship between exagrams and gigagrams:
To convert exagrams to gigagrams, multiply the value in exagrams by 1e+9. To reverse, multiply gigagrams by 1e-9.
How to use this converter
Type a value into the calculator. The result in gigagrams updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Gigagram to Exagram converter for the reverse direction.
Step-by-step: convert exagrams to gigagrams
- Write down the value in exagrams (Eg).
- Multiply that value by the factor 1e+9.
- The product is the equivalent value in gigagrams (Gg).
- To reverse, multiply the gigagram value by 1e-9.
Worked examples
Example 1 — Convert 1 Eg to Gg:
1 × 1e+9 = 1e+9 Gg
Example 2 — Convert 100 Eg to Gg:
100 × 1e+9 = 1e+11 Gg
Exagram to Gigagram conversion table
Standard reference values for converting exagrams to gigagrams:
| Exagram [Eg] | Gigagram [Gg] |
|---|---|
| 0.01 | 1e+7 |
| 0.1 | 1e+8 |
| 1 | 1e+9 |
| 2 | 2e+9 |
| 3 | 3e+9 |
| 4 | 4e+9 |
| 5 | 5e+9 |
| 10 | 1e+10 |
| 20 | 2e+10 |
| 30 | 3e+10 |
| 40 | 4e+10 |
| 50 | 5e+10 |
| 100 | 1e+11 |
| 500 | 5e+11 |
| 1000 | 1e+12 |
Frequently asked questions
How many gigagrams is 1 exagram?
How do I convert exagrams to gigagrams?
How do I convert gigagrams back to exagrams?
How many gigagrams is 100 exagrams?
Popular weight unit conversions
Convert Exagram to other weight units
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Metric / SI (17 units)
Avoirdupois (15 units)
Troy & Apothecary (10 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 Eg = 1e+9 Gg) 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 Hydrographic Organization — Resolution on the Nautical Mile
International authority that standardised the nautical mile at exactly 1852 m in 1929 — the value adopted worldwide for sea and air navigation.