Gold Polish Calculator — Ratti/Tola Loss → Tola Output
The fully South-Asian polish calculator: input in ratti-per-tola, output in tola/masha/ratti. Every variable stays in local units, matching the daily-ledger reckoning at Karachi Sarafa Association and Mumbai Zaveri Bazaar shops.
This is the variant used by traditional jewellers who price, weigh, settle and book entirely in tola units, avoiding any gram conversions.
When to use this calculator
- Traditional Sarafa bookkeeping
- Customer-facing receipt in customary units
Fully Traditional: Ratti/Tola Rate, Tola/Masha/Ratti Output
This is the most locally-anchored of all four polish calculators: the rate is entered in ratti-per-tola (the granular South Asian polish unit) and the result is returned in tola/masha/ratti — matching how both the jeweller and customer think and communicate in traditional Sarafa Bazar trade.
The calculation runs: gross tola × ratti/tola rate = total ratti loss → convert to tola/masha/ratti → subtract from gross in tola units → express net as tola/masha/ratti. No grams or decimals appear anywhere in the process, minimising the chance of rounding confusion at the settlement counter.
For the gram-output equivalent — needed for customs paperwork or international refiner intake — the ratti-per-tola polish → grams calculator produces the same net weight in metric units without changing the ratti/tola rate input.
Pure tola/masha/ratti polish reckoning
Polish loss (ratti) = Gross tola × polish ratti/tola. Net ratti = Gross ratti − Polish ratti. Convert back to tola/masha/ratti using the 96/8/1 hierarchy.
Step-by-step calculation
Example: 4 tola gross at 8 ratti/tola polish rate
- 1
Total loss in ratti
loss (ratti) = gross tola × ratti/tola rate
4 × 8 = 32 ratti total loss
- 2
Express loss as masha/ratti
8 ratti = 1 masha
32 ratti = 4 masha 0 ratti loss
- 3
Gross weight in TMR
starting weight
4 tola 0 masha 0 ratti = 384 ratti gross
- 4
Net weight in TMR
net ratti = gross ratti − loss ratti
384 − 32 = 352 ratti = 3 tola 8 masha 0 ratti net
Sample conversions
| Input | Result |
|---|---|
| 2 tola gross, 4 ratti/tola | 1 tola 11 masha 0 ratti net |
| 5 tola gross, 6 ratti/tola | 4 tola 8 masha 6 ratti net |
Quick Reference — Ratti/Tola Rate to Net Tola
| Gross Tola | At 4 ratti/tola |
|---|---|
| 1 tola | 0t 11m 4r net |
| 2 tola | 1t 10m 8r net |
| 5 tola | 4t 9m 4r net |
| 10 tola | 9t 6m 8r net |
Loss (ratti) = Gross tola × ratti/tola rate. 8 ratti = 1 masha; 96 ratti = 1 tola.
Frequently asked questions
Why avoid grams in this fully-tola variant?
When both customer and shop deal in tola/masha/ratti, every gram-conversion step introduces rounding. Keeping the math entirely in local units avoids accumulated rounding noise and produces customer receipts that match the ledger without a conversion step.
What is the net tola of a 3-tola piece with 6 ratti/tola polish?
3 tola gross; polish = 3 × 6 = 18 ratti = 2 masha 2 ratti = 0.1875 tola; net = 3 − 0.1875 = 2.8125 tola = 2 tola 9 masha 6 ratti.
How do I convert a ratti/tola polish loss to a percentage?
Polish % = (ratti/tola ÷ 96) × 100. So 8 ratti/tola = 8/96 × 100 = 8.33% loss per tola. At 6 ratti/tola the loss is 6.25%. This percentage applies to any weight in tola.
Is there a standard polish rate used across all of Karachi's Sarafa Bazar?
No single fixed rate exists — it is agreed per job. However, the Karachi Sarafa Association's informal norm is 4–8 ratti/tola for standard pieces and up to 12 ratti/tola for highly intricate mirror-finish work. Rates above 12 ratti/tola are unusual and typically require written agreement.
If I know the gross and net tola, can I back-calculate the polish rate?
Yes. Loss = gross − net (in tola). Loss in ratti = loss in tola × 96. Rate = ratti loss ÷ gross tola. Example: 5 tola gross, 4.8 tola net → 0.2 tola loss = 19.2 ratti total ÷ 5 tola = 3.84 ratti/tola.
Related calculators
These tools cover neighbouring steps in the same workflow — pair them with this one for a complete calculation.