Cheese Yield Calculator
Enter milk volume, fat percentage, and cheese type to get expected yield in kg, whey produced, milk-to-cheese ratio, and cost per kg. Hard, semi-soft, soft, fresh, and ricotta. Nothing uploaded.
Milk & Cheese Settings
Yield Estimate
Estimates vary ±15-25% depending on recipe, culture, rennet type, and ageing. Actual yield should be measured during a practice batch.
Learn more: cheese yield and cheesemaking economics
How the calculator gets from litres to kilograms
The tool converts milk volume to weight at 1.03 kg per litre, then multiplies by a yield factor fixed per cheese type: 10% for hard cheeses like cheddar and gouda, 13% semi-soft, 14% fresh mozzarella or feta, 17% soft cheeses like brie, and 6% for ricotta made from whey.
Ten litres of whole milk weighs 10.3 kg, so a hard-cheese batch comes out at 1.03 kg while a soft-cheese batch from the same milk comes out at 1.75 kg. Which style you pick changes the answer more than anything else you can enter.
What the milk fat setting actually changes
On top of the type factor, the calculator adds 1.5% to the yield for each percentage point of fat above a 3.5% baseline. Jersey milk at 4.5% gives about 1.5% more cheese than standard whole milk, taking that 10-litre hard batch from 1.03 kg to 1.045 kg.
Even skimmed milk at 0.1% only drops the same batch to 0.977 kg. Fat is a small correction in this model, so if you want more cheese out of a fixed amount of milk, changing style does far more than sourcing richer milk.
Whey, moisture, and why the estimate is a range
Whey is what drains off once the curd is out, and the tool works it out as the milk volume minus roughly what went into the cheese. Ten litres gives about 9.1 litres of whey for hard cheese and 8.4 litres for soft, because the softer curd keeps more liquid.
Moisture is a typical figure per style rather than something the tool calculates: 38% for hard, 45% semi-soft, 52% fresh, 55% soft, 75% for ricotta. That is why the same milk can weigh in at 1.03 kg or 1.75 kg depending on what you set out to make.
Real batches land within roughly 15-25% either side of the estimate. Under-ripened milk or curd cut too early leaves fat and protein behind in the whey, so weigh your first batch and use that as your own factor afterwards.
Cost per kg and dairy economics
Enter a milk price and the tool divides the total milk cost by the cheese weight. Ten litres at $0.90 a litre costs $9.00, which is $8.74 per kg of hard cheese but $5.14 per kg of soft, because the soft batch weighs 1.75 kg.
The milk-to-cheese ratio shows the same thing from the other side: 9.7 litres per kg for hard against 5.7 for soft. That figure only covers milk. Rennet, culture, labour, ageing space, and spoilage all sit on top before you have a break-even price.
FAQ
How much cheese from 10 litres of milk?
At 3.5% fat, 10 litres weighs 10.3 kg and gives roughly 1.03 kg of hard cheese, 1.34 kg semi-soft, 1.44 kg fresh mozzarella or feta, or 1.75 kg soft cheese. The rest drains off as whey.
Why does fat content affect yield?
Fat is trapped in the curd alongside the casein, so richer milk puts more solid weight into the cheese instead of the whey. The calculator adds 1.5% per percentage point of fat above 3.5%, so Jersey milk at 4.5% gives about 1.5% more cheese than standard whole milk.
What can I do with the whey?
Whey holds the water, lactose and whey proteins that did not set into curd, so it is worth keeping. Heat it to around 90C for ricotta, or use it in bread dough, porridge, or livestock feed. To size that second batch, switch the type to ricotta and enter your whey volume instead of milk.