Enter one lot — or one whole day — and see your outturn percentage, your by-product recovery, and the part of the paddy that nothing accounts for. That last number is the one that quietly eats a season.
Weights in quintals (1 qtl = 100 kg). Use one lot, one shift or one day — the arithmetic is the same.
Nothing is sent anywhere — this runs entirely in your browser.
Outturn is the share of your paddy that leaves the mill as rice:
Outturn % = (rice out ÷ paddy in) × 100
Unexplained % = 100 − outturn % − bran % − husk %
The first line is the number everyone quotes. The second is the one that matters. Paddy does not disappear — it becomes rice, bran, husk, or a gap. Moisture driven off in drying is real and belongs in that gap, which is why a small unexplained figure is normal and a large one is not.
Rice outturn in Indian mills usually sits somewhere in the mid-sixties as a percentage, with husk the largest by-product and bran a much smaller slice. Your own mill's honest range depends on variety, paddy moisture at intake, how the paddy was dried, whether you are milling raw or parboiled, and the condition of your huller and polisher.
That is the important point: there is no universal correct number, only your number. A mill that knows its own settled range for a given variety can spot a bad lot immediately. A mill that has never measured it cannot tell a bad lot from a bad day.
If you do custom milling for state procurement, the outturn ratio you must deliver is fixed by the procurement order rather than by your machinery — check your current season's order for the exact figure, and treat any shortfall against it as a cost you are absorbing.
On the two to six percent margins a mill actually runs, a couple of points of unexplained loss is not a rounding error — it is the profit. And it never shows up in Tally as a line item, because there is no transaction to record. It is simply an absence.
Running this calculator once tells you today's number. The reason mills keep leaking is that nobody runs it every day, for every lot, against the record. That is exactly what MillSaathi does — free.
There is no single right answer — it depends on your variety, intake moisture, drying, raw versus parboiled milling, and machine condition. What matters far more is knowing your own settled range for each variety, because that is what lets you recognise a bad lot on the day it happens instead of at the end of the season.
The four usual causes are wet paddy weighed as dry at the gate, bag counts drifting between weighbridge and godown, by-products leaving without a sale record, and genuine moisture loss in drying. Genuine loss is fine — the problem is that without a per-lot record you cannot tell which portion is genuine.
Physically it is real weight that leaves as water, so it shows up in the gap. Measure your paddy moisture at intake and it stops being a mystery: you can separate the water you paid for from the grain you actually lost. The moisture deduction calculator on this site does that part.
Yes, and so is MillSaathi itself. There is no signup on this page, nothing is sent to a server, and the full product — gate, weighbridge, lab, saudas, stock and the nightly mass balance — is free with unlimited users.
No. MillSaathi captures what physically happens on the mill floor and reconciles every lot; Tally stays your accounting. The point is to feed Tally verified numbers instead of end-of-day re-entry from memory.
MillSaathi is free — every module, unlimited users, no card. Open the demo mill and click through a real day, or start your own mill in a few minutes.