Convert Pennyweight to Tael
Convert pennyweights to taels instantly. 1 pennyweight = 0.0411428606 tael — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Tael to Pennyweight converter for the reverse conversion.
Units explained
Pennyweight
The pennyweight (dwt) equals one-twentieth of a troy ounce, 24 grains (about 1.555 g).
From the mass of a medieval English silver penny; symbol dwt from 'denarius weight'.
Jewelry making and precious-metal scrap valuation in the US.
Derived from the medieval English coinage system.
Tael
The tael equals about 37.8 grams (ten mace).
From Malay 'tahil'; the Chinese unit is the 'liang'.
East Asian precious-metal and traditional-medicine commerce.
A long-standing East Asian trade weight, with regional variants.
Pennyweight to Tael 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 pennyweights and taels:
To convert pennyweights to taels, multiply the value in pennyweights by 0.0411428606. To reverse, multiply taels by 24.3055535015.
How to use this converter
Type a value into the calculator. The result in taels updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Tael to Pennyweight converter for the reverse direction.
Step-by-step: convert pennyweights to taels
- Write down the value in pennyweights (dwt).
- Multiply that value by the factor 0.0411428606.
- The product is the equivalent value in taels (tael).
- To reverse, multiply the tael value by 24.3055535015.
Worked examples
Example 1 — Convert 1 dwt to tael:
1 × 0.0411428606 = 0.0411428606 tael
Example 2 — Convert 100 dwt to tael:
100 × 0.0411428606 = 4.114286062 tael
Real-world example — Ruler-scale measurements
A 30-pennyweight school ruler converts cleanly to taels — useful when buying a desk accessory from a retailer whose product specs use a different unit.
30 dwt × 0.0411428606 = 1.2342858186 tael
Real-world example — Hardware-scale dimensions
A 10-pennyweight fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between pennyweights and taels daily when mixing metric and imperial tools.
10 dwt × 0.0411428606 = 0.4114286062 tael
Real-world example — Postcard and small-object dimensions
A postcard is about 5 pennyweights wide. Converting to taels is essential for international postal addressing forms that ask for dimensions in different units across countries.
5 dwt × 0.0411428606 = 0.2057143031 tael
Pennyweight to Tael conversion table
Standard reference values for converting pennyweights to taels:
| Pennyweight [dwt] | Tael [tael] |
|---|---|
| 0.01 | 0.0004114286 |
| 0.1 | 0.0041142861 |
| 1 | 0.0411428606 |
| 2 | 0.0822857212 |
| 3 | 0.1234285819 |
| 4 | 0.1645714425 |
| 5 | 0.2057143031 |
| 10 | 0.4114286062 |
| 20 | 0.8228572124 |
| 30 | 1.2342858186 |
| 40 | 1.6457144248 |
| 50 | 2.057143031 |
| 100 | 4.114286062 |
| 500 | 20.5714303099 |
| 1000 | 41.1428606199 |
Frequently asked questions
How many taels is 1 pennyweight?
How do I convert pennyweights to taels?
How do I convert taels back to pennyweights?
How many taels is 100 pennyweights?
Popular weight unit conversions
Convert Pennyweight to other weight units
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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)
Sources & references
Conversion factor (1 dwt = 0.0411428606 tael) 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.