Convert Tola to Wey
Convert tolas to weys instantly. 1 tola = 0.0001020408 wey — use the live calculator, the exact formula, a conversion table and worked examples. Also check the Wey to Tola converter for the reverse conversion.
Units explained
Tola
The tola equals 180 troy grains, about 11.6638 grams (three-eighths of a troy ounce).
From Sanskrit 'tula', meaning a balance or weighing.
The primary unit for gold and silver across India, Pakistan, and Nepal.
Fixed at 180 grains under British India in 1833.
Wey
The wey was an English bulk weight, here taken as 252 pounds (about 114.3 kg).
From Old English 'waege', a weighing or balance.
Obsolete English unit for wool, cheese, and salt.
Used in medieval and early-modern English trade.
Tola to Wey 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 tolas and weys:
To convert tolas to weys, multiply the value in tolas by 0.0001020408. To reverse, multiply weys by 9800.
How to use this converter
Type a value into the calculator. The result in weys updates as you type. Tap a quick value, copy the result with one click, or use the swap arrow to jump straight to the Wey to Tola converter for the reverse direction.
Step-by-step: convert tolas to weys
- Write down the value in tolas (tola).
- Multiply that value by the factor 0.0001020408.
- The product is the equivalent value in weys (wey).
- To reverse, multiply the wey value by 9800.
Worked examples
Example 1 — Convert 1 tola to wey:
1 × 0.0001020408 = 0.0001020408 wey
Example 2 — Convert 100 tola to wey:
100 × 0.0001020408 = 0.0102040816 wey
Real-world example — Hardware-scale dimensions
A 10-tola fastener or component is about as long as a thumbnail. Mechanics and DIY enthusiasts convert between tolas and weys daily when mixing metric and imperial tools.
10 tola × 0.0001020408 = 0.0010204082 wey
Real-world example — Postcard and small-object dimensions
A postcard is about 5 tolas wide. Converting to weys is essential for international postal addressing forms that ask for dimensions in different units across countries.
5 tola × 0.0001020408 = 0.0005102041 wey
Real-world example — Ruler-scale measurements
A 30-tola school ruler converts cleanly to weys — useful when buying a desk accessory from a retailer whose product specs use a different unit.
30 tola × 0.0001020408 = 0.0030612245 wey
Tola to Wey conversion table
Standard reference values for converting tolas to weys:
| Tola [tola] | Wey [wey] |
|---|---|
| 0.01 | 1.020408e-6 |
| 0.1 | 1.020408e-5 |
| 1 | 0.0001020408 |
| 2 | 0.0002040816 |
| 3 | 0.0003061224 |
| 4 | 0.0004081633 |
| 5 | 0.0005102041 |
| 10 | 0.0010204082 |
| 20 | 0.0020408163 |
| 30 | 0.0030612245 |
| 40 | 0.0040816327 |
| 50 | 0.0051020408 |
| 100 | 0.0102040816 |
| 500 | 0.0510204082 |
| 1000 | 0.1020408163 |
Frequently asked questions
How many weys is 1 tola?
How do I convert tolas to weys?
How do I convert weys back to tolas?
How many weys is 100 tolas?
Popular weight unit conversions
Convert Tola to other weight units
Show all Tola conversions
Metric / SI (18 units)
Avoirdupois (15 units)
Troy & Apothecary (10 units)
Indian / South Asian (5 units)
Scientific / Atomic (9 units)
Astronomical (4 units)
Biblical / Ancient (14 units)
Sources & references
Conversion factor (1 tola = 0.0001020408 wey) 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.