How Many Grams in 1 Vori: Official BAJUS Benchmark
According to the Bangladesh Jewellers Association (BAJUS) and traditional South Asian bullion market standards, 1 Vori (Tola) equals exactly 11.664 grams. Historically derived from the British-Indian Tola standard of 180 troy grains, the precise scientific metric calculates to 11.6638038 grams. However, throughout Bangladesh retail showrooms, Dhaka Tanti Bazar wholesale bullion counters, and commercial banking vaults, the rounded standard of 11.664 grams is universally adopted to ensure complete consistency in retail calculations.
Traditional Weight Structure: Vori, Ana, Roti, and Points
In Bangladeshi goldsmithing and commercial jewelry memos, one Vori is subdivided into three historical fractional units:
1 Ana equals 0.729 grams (11.664 ÷ 16). Ana is the standard vernacular unit for finger rings, earrings, and nose pins.
1 Vori equals 96 Roti. 1 Roti equals 0.1215 grams (0.729 ÷ 6). Roti is commonly used for delicate jewelry and gemstone weights.
1 Vori contains 960 Points under traditional conventions, or 1,000 Points on modern digital scales. 1 traditional Point equals 0.01215 grams.
Mathematical Formula: Converting Grams to Vori
To convert digital scale readings from grams into decimal vori, use the fundamental division formula:
Step-by-step example: Suppose a gold necklace weighs 15.75 grams on a digital scale:
- Step 1 (Whole Vori): 15.75 ÷ 11.664 = 1.3503 vori. The whole number gives 1 Vori.
- Step 2 (Calculate Ana): Multiply the remaining decimal 0.3503 × 16 = 5.605 ana. The whole number gives 5 Ana.
- Step 3 (Calculate Roti): Multiply the remaining decimal 0.605 × 6 = 3.63 roti.
Result: 15.75 grams equals 1 Vori 5 Ana 3.6 Roti.
Formula: Converting Vori, Ana, and Roti into Grams
When an invoice specifies weights in traditional units, convert directly to grams with this composite formula:
Example: What is the metric weight of 3 Vori 2 Ana 4 Roti?
(3 × 11.664) + (2 × 0.729) + (4 × 0.1215) = 34.992 + 1.458 + 0.486 = 36.936 Grams.
Quick Reference Gram to Vori Conversion Table
| Weight (Grams) | Decimal Vori | Traditional Vori, Ana & Roti | Troy Ounces (oz t) |
|---|---|---|---|
| 1.00 g | 0.0857 vori | 0v 1a 2.2r | 0.0321 oz t |
| 2.00 g | 0.1715 vori | 0v 2a 4.5r | 0.0643 oz t |
| 5.00 g | 0.4287 vori | 0v 6a 5.1r | 0.1608 oz t |
| 10.00 g | 0.8573 vori | 0v 13a 4.3r | 0.3215 oz t |
| 11.664 g (1 Vori) | 1.0000 vori | 1v 0a 0r | 0.3750 oz t |
| 20.00 g | 1.7147 vori | 1v 11a 2.6r | 0.6430 oz t |
| 50.00 g | 4.2867 vori | 4v 4a 3.5r | 1.6075 oz t |
| 100.00 g | 8.5733 vori | 8v 9a 1.0r | 3.2150 oz t |
| 116.64 g (10 Vori Bar) | 10.0000 vori | 10v 0a 0r | 3.7500 oz t |
| 117.00 g (Baggage Rule Cap) | 10.0309 vori | 10v 0a 3.0r | 3.7616 oz t |
Showroom Verification: 4 Critical Weighing Rules
1. Gross Scale Weight vs Net Gold Weight
If jewelry incorporates gemstones, cubic zirconia, or lacquer wax, the reading on the scale is gross weight. The vendor must explicitly deduct non-gold elements and invoice pure gold weight separately.
2. BSTI Certified Three Decimal Digital Scales
Gold weighing in Bangladesh requires certified precision balances measuring to three decimal places (0.001 gram accuracy) sealed inside draft shields to eliminate air turbulence errors.
3. Verification of 11.664g Divisor
Always ensure the jeweler uses the complete 11.664g divisor rather than truncating to 11.66g, which would unfairly diminish your recorded weight by fractional milligrams.
4. Dual Units on Official Cash Memos
Ensure your cash invoice records item weights in both metric grams and traditional vori units to protect your resale rights during future trade-ins.
