Convert Mace to Exagram
Convert maces to exagrams instantly. 1 mace = 3.779936e-18 exagram — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Exagram to Mace converter for the reverse conversion.
Units explained
Mace
The mace equals one-tenth of a tael, about 3.78 grams.
From the Chinese 'qian'; 'mace' is the European trade name.
Chinese and Southeast Asian gold and traditional-medicine trade.
Part of the traditional Chinese tael system.
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.
Mace to Exagram conversion formula
Note: this conversion uses a generally accepted modern value. Historical and regional definitions of this unit varied across times and places.
The relationship between maces and exagrams:
To convert maces to exagrams, multiply the value in maces by 3.779936e-18. To reverse, multiply exagrams by 2.645547e+17.
How to use this converter
Type a value into the calculator. The result in exagrams updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Exagram to Mace converter for the reverse direction.
Step-by-step: convert maces to exagrams
- Write down the value in maces (mace).
- Multiply that value by the factor 3.779936e-18.
- The product is the equivalent value in exagrams (Eg).
- To reverse, multiply the exagram value by 2.645547e+17.
Worked examples
Example 1 — Convert 1 mace to Eg:
1 × 3.779936e-18 = 3.779936e-18 Eg
Example 2 — Convert 100 mace to Eg:
100 × 3.779936e-18 = 3.779936e-16 Eg
Real-world example — Ruler-scale measurements
A 30-mace school ruler converts cleanly to exagrams — useful when buying a desk accessory from a retailer whose product specs use a different unit.
30 mace × 3.779936e-18 = 1.133981e-16 Eg
Real-world example — Hardware-scale dimensions
A 10-mace fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between maces and exagrams daily when mixing metric and imperial tools.
10 mace × 3.779936e-18 = 3.779936e-17 Eg
Real-world example — Postcard and small-object dimensions
A postcard is about 5 maces wide. Converting to exagrams is essential for international postal addressing forms that ask for dimensions in different units across countries.
5 mace × 3.779936e-18 = 1.889968e-17 Eg
Mace to Exagram conversion table
Standard reference values for converting maces to exagrams:
| Mace [mace] | Exagram [Eg] |
|---|---|
| 0.01 | 3.779936e-20 |
| 0.1 | 3.779936e-19 |
| 1 | 3.779936e-18 |
| 2 | 7.559872e-18 |
| 3 | 1.133981e-17 |
| 4 | 1.511974e-17 |
| 5 | 1.889968e-17 |
| 10 | 3.779936e-17 |
| 20 | 7.559872e-17 |
| 30 | 1.133981e-16 |
| 40 | 1.511974e-16 |
| 50 | 1.889968e-16 |
| 100 | 3.779936e-16 |
| 500 | 1.889968e-15 |
| 1000 | 3.779936e-15 |
Frequently asked questions
How many exagrams is 1 mace?
How do I convert maces to exagrams?
How do I convert exagrams back to maces?
How many exagrams is 100 maces?
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Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 mace = 3.779936e-18 Eg) 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.