Mass and Weight · Unit Converter

Convert Mace to Ounce

Convert maces to ounces instantly. 1 mace = 0.1333333188 ounce — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Ounce to Mace converter for the reverse conversion.

Written by Sunith Babu L, Ph.D., Lead Engineer Reviewed by Dr. Ashok Kumar K, Ph.D.
Mass and Weight category 2 min read Published Last reviewed Updated

Units explained

Troy & Apothecary

Mace

What is a mace?

The mace equals one-tenth of a tael, about 3.78 grams.

Origin of the mace

From the Chinese 'qian'; 'mace' is the European trade name.

Where it is used

Chinese and Southeast Asian gold and traditional-medicine trade.

When and where it was developed

Part of the traditional Chinese tael system.

Avoirdupois

Ounce

What is a ounce?

The (avoirdupois) ounce (oz) equals one-sixteenth of a pound, about 28.35 grams.

Origin of the ounce

From Latin 'uncia', meaning a twelfth part.

Where it is used

US food portions, postal weights, and boxing weight classes.

When and where it was developed

Standardized as 1/16 of the international pound from 1959.

Mace to Ounce 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 ounces:

1 mace = 0.1333333188 oz
1 oz = 7.5000008201 mace

To convert maces to ounces, multiply the value in maces by 0.1333333188. To reverse, multiply ounces by 7.5000008201.

How to use this converter

Type a value into the calculator. The result in ounces updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Ounce to Mace converter for the reverse direction.

Step-by-step: convert maces to ounces

  1. Write down the value in maces (mace).
  2. Multiply that value by the factor 0.1333333188.
  3. The product is the equivalent value in ounces (oz).
  4. To reverse, multiply the ounce value by 7.5000008201.

Worked examples

Example 1 — Convert 1 mace to oz:
1 × 0.1333333188 = 0.1333333188 oz

Example 2 — Convert 100 mace to oz:
100 × 0.1333333188 = 13.3333318753 oz

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 ounces daily when mixing metric and imperial tools.

10 mace × 0.1333333188 = 1.3333331875 oz

Real-world example — Postcard and small-object dimensions

A postcard is about 5 maces wide. Converting to ounces is essential for international postal addressing forms that ask for dimensions in different units across countries.

5 mace × 0.1333333188 = 0.6666665938 oz

Real-world example — Ruler-scale measurements

A 30-mace school ruler converts cleanly to ounces — useful when buying a desk accessory from a retailer whose product specs use a different unit.

30 mace × 0.1333333188 = 3.9999995626 oz

Mace to Ounce conversion table

Standard reference values for converting maces to ounces:

Mace [mace]Ounce [oz]
0.010.0013333332
0.10.0133333319
10.1333333188
20.2666666375
30.3999999563
40.533333275
50.6666665938
101.3333331875
202.6666663751
303.9999995626
405.3333327501
506.6666659377
10013.3333318753
50066.6666593767
1000133.3333187534

Frequently asked questions

How many ounces is 1 mace?
1 mace equals 0.1333333188 ounce.
How do I convert maces to ounces?
Multiply the value in maces by 0.1333333188 to get ounces.
How do I convert ounces back to maces?
Multiply the value in ounces by 7.5000008201, or use the Ounce to Mace converter.
How many ounces is 100 maces?
100 maces equals 13.3333318753 ounces, because 100 × 0.1333333188 = 13.3333318753.

Convert Mace to other weight units

Show all Mace conversions
Metric / SI (18 units)
Avoirdupois (15 units)
Troy & Apothecary (9 units)
Indian / South Asian (6 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Force / Engineering (5 units)

Sources & references

Conversion factor (1 mace = 0.1333333188 oz) verified against the following authoritative sources:

Results are provided for general reference. Verify critical measurements against an authoritative standard.