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You eat 2,200 a day. They eat 1,500. You would like to cook once. Put both numbers in and pick a dinner — this works out what each of you is served, and how much to actually cook.
Calories a day, each. Dinner is 40% of that — the same share the planner uses.
Cook 2.4 servings and serve them like this.
A curry is the easy case: every amount divides, so the split is exact.
Free, no account. We’ll keep these two numbers.
A daily target is not a dinner target. Dinner is roughly 40% of a day that includes breakfast, so 2,200 a day is about 880 at dinner and 1,500 a day is about 600.
Divide each of those by the calories in one serving of the dish and you have two serving multiples — 1.4 and 1.0, say. Add them together and that is how much to cook: 2.4 servings, not two, and not four.
Nothing here is guesswork or a model’s estimate. It is division, which is exactly why it is done in your browser and not by an AI.
Some dinners do not divide. You cannot serve someone 1.4 tacos, and half a salmon fillet is not a portion — it is a smaller fish. A calculator that shows you 1.4 of one is telling you something that cannot happen at a table.
So for those dishes the split rounds to whole servings, and whoever came up short gets a side named against the gap — a cup of rice, a slice of bread, a spoon of yoghurt. Same dinner, one extra thing on one plate. That is the answer a household actually arrives at, and it is worth more than a precise-looking wrong one.
The usual advice for two people on different targets is to cook two things, or to set a calorie app to the sum of both and divide by eye. One doubles the work; the other means the person tracking is doing arithmetic at the stove every night.
A shared meal with per-person portions is the third option, and it is the one that survives a Tuesday. It only needs somebody to have done the division first.
Each person gets a serving multiple of the same dish rather than a different dinner. Your daily target becomes a dinner target — about 40% of the day — and that figure divided by the calories in one serving is your share. Cook the two shares added together and serve them out.
Then it does not, and pretending otherwise is how these calculators go wrong. Tacos come in whole tortillas and a salmon fillet is one fillet, so the tool rounds to whole servings and adds a side — a cup of rice, a piece of bread — to whoever came up short. That is what a real household does.
Yes. A serving is capped between half and double, because eight times a portion is not a portion any more — it is a different dinner. When a target sits outside that band the tool says so and suggests a side rather than quietly serving an impossible plate.
No. The whole calculator runs in your browser and nothing is sent anywhere. An account is only for the next thing — a full week of dinners that split like this, with one shopping list.
The arithmetic does — it is the same engine that plans for a household of five, with a child on their own figure. This page asks for two because two is the case people search for. The planner takes the rest of the table.
Seven dinners that both of you can eat, each one portioned to your two numbers, with a single shopping list for the lot. Your first week is free and needs no card.
See a full week for both of you