Meal Prep Container Portion Calculator
Macro calculators assume one meal - batch cooking means splitting one big cook into several containers evenly. Enter your total by weight or by macros, pick the number of containers, and get an exact even split with no container shortchanged. Nothing uploaded.
Portion Split
Learn more: splitting a batch cook across containers
Handling the remainder
A total seldom divides evenly. 1000 g of rice across 3 containers is 333.33 g each, and a kitchen scale cannot read a third of a gram. The tool gives every container the rounded-down share, then hands the leftover out one gram at a time to the last containers. So 1000 g across 3 becomes 333, 333 and 334.
The leftover is shared out and not dropped on one container. With 100 g across 12 containers, the share is 8 g and 4 g are left, so the last four containers get 9 g and the rest get 8. The total always matches your batch, and no container is more than 1 g from another.
What the macro mode does
In weight mode you enter the batch weight. In macros mode you enter the batch totals for protein, carbs, fat and calories. The tool splits each figure on its own, the same way, so every container gets the same amount of each, give or take that last unit.
That is a split of the numbers you typed. It does not know what is in each scoop. If the chicken has settled at the bottom of the pot, the containers you fill will not match the printed figures. Stir the batch well before you portion it, or weigh each container to the target.
Calories are split as their own figure. If you enter calories that do not match 4 per gram of protein and carbs and 9 per gram of fat, the per-container numbers will not match either.
FAQ
Why can containers differ in calories even at the same weight?
Weight and calories are not the same thing. A container with more sauce or fat holds more calories than a leaner one at the same weight. The tool's even split assumes every scoop has the same mix.
Which containers get the extra gram?
The last ones in the list. Each one gets the same rounded-down amount, and the extra grams go one at a time to the final containers, with any fraction on the very last.
Should I use weight mode or macros mode?
Use weight mode to portion a batch by weight. Use macros mode when you want each container's protein, carbs, fat and calories printed as a label. Both divide evenly, so the mix is only right if the batch is well mixed.