Guide
Cost per litre: what most dairy farms get wrong
Three mistakes that make a farm look profitable when it is not — and the one number that settles the question.
Why the number is wrong
The three mistakes
Dry and young stock are left out
A dry cow eats and produces nothing; her income over feed cost is negative. Young stock eat for two years before they earn anything. Excluding them from the cost side while including only milking animals is the most common single error, and on a herd where a third are dry it overstates profit by roughly a fifth.
Peak yield is used as average yield
An animal peaking at 18 litres does not average 18 litres. Across a full lactation, average daily yield is typically 60–70% of peak. A projection built on peak numbers is optimistic by about a third before anything else goes wrong.
Only feed is counted
Feed is usually 55–65% of milk income — not 100% of cost. Labour, medicine, semen, electricity, transport, repairs, depreciation and mortality are all real. Together they are what turns a farm that looks profitable on paper into one that never quite has cash.
What belongs in the calculation
Cost per litre is total cost for a period divided by saleable litres for the same period. Both halves are commonly got wrong.
The numerator is every cost the farm incurred: feed for all animals including dry and young stock, labour including the owner's own time if it would otherwise be paid for, medicine, semen and breeding, utilities, transport, repairs and maintenance, depreciation on sheds and equipment, animal mortality, and financing.
The denominator is saleable litres — not litres produced. Milk fed to calves, taken by the household, given to staff, or discarded for withdrawal is not revenue, and including it flatters the number.
A worked example
A 15-animal herd, 10 milking
| Line | Monthly | Note |
|---|---|---|
| Saleable milk | 3,600 L | 10 animals × 12 L × 30 days |
| Revenue at PKR 197 | PKR 709,200 | |
| Feed — milking | PKR 255,000 | 10 × PKR 850 × 30 |
| Feed — dry and young | PKR 52,500 | 5 × PKR 350 × 30 — the line most often omitted |
| Labour | PKR 60,000 | |
| Everything else | PKR 25,000 | Medicine, semen, utilities, transport, repairs |
| Total cost | PKR 392,500 | |
| Cost per litre | PKR 109 | Margin of PKR 88 a litre |
| Cost per litre if dry stock is omitted | PKR 94 | A 14% understatement, from one omitted line |
Illustrative figures at September 2026 prices. Run it with your own in the profit calculator.
Why an annual figure is not enough
Cost per litre moves every week. Feed prices move. Yield moves with the season and with how many animals are fresh. The proportion of the herd that is dry moves constantly.
An annual figure computed at year end tells you what happened. It cannot tell you that this month's wanda purchase pushed you past break-even on the low-yielding half of the herd, at a point when you could still have done something about it.
The useful version of this number is computed daily, from actual purchases and actual milkings. That is a records problem, not an arithmetic one.
Questions
Common questions
What is a normal cost per litre in Pakistan?
Commercial farms typically land between PKR 90 and PKR 130 a litre depending on feed cost, yield and how much of the herd is dry. A figure well below that usually means something has been left out of the cost side.
Should the owner's own labour be counted?
Yes, if the work would otherwise have to be paid for. Leaving it out makes the farm look profitable while quietly consuming an unpaid full-time job.
Is income over feed cost the same thing?
No. IOFC is milk income minus feed cost only, per cow per day — a fast operational signal. Cost per litre includes every cost and answers whether the business makes money.
How often should it be recalculated?
Monthly at minimum, daily if the records allow it. Feed prices and the dry-to-milking ratio move enough that a quarterly figure is already history.
Numbers beat opinions
Lactra computes these figures from your own records daily. Free for 20 animals, no card for the trial.