Tool · Investor Sam Food

Meal-Prep Savings Calculator

June 30, 2026 • By the Investor Sam Editorial Team • Reviewed by Berly Sam Varghese, Editor
Batch-cooking a few meals on the weekend is one of the highest-return habits in a food budget, but the payoff is easy to underestimate until you put numbers on it. This calculator compares what you would spend on takeout or prepared meals against the per-portion cost of cooking those same meals yourself, then scales the difference to a week, a month, and a year. Enter honest figures for both sides — the prepared-meal cost you would otherwise pay and your realistic cost to cook from scratch.

Example: Meals you prep per week: 10 meals · Takeout / prepared cost per meal: 13 $ · Your cost to cook per meal: 4 $

Weekly savings$90
Monthly savings$390
Annual savings$4,680

Worked example

Say you meal-prep 10 lunches and dinners a week that would otherwise cost about $13 each as takeout, and your from-scratch cost per portion is about $4. The $9 gap per meal across 10 meals is $90 a week, roughly $390 a month and about $4,680 a year. Even halving the number of prepped meals still clears $2,000 in annual savings — which is why meal prep shows up on nearly every serious budgeting plan.

Frequently asked questions

How do I figure my real cost to cook per meal?

Take a recipe's total ingredient cost and divide by the number of servings it makes. Batch recipes built around rice, beans, pasta, eggs, and in-season vegetables often land between $2 and $5 a serving. Include a small amount for cooking energy and any packaging if you want to be precise.

Does meal prep really cut food waste?

Usually, yes. Cooking to a plan means you buy only what a set of recipes needs and use ingredients fully across several meals, rather than letting produce spoil. The U.S. wastes a large share of its food, and households throw away hundreds of dollars of groceries a year, so waste reduction is a real part of the savings.

Is the time worth the money saved?

That varies by household, but a few hours of batch cooking that saves thousands a year is a strong hourly return for most budgets. Many people also value the reduced weekday decision fatigue as much as the dollars.

What if I only prep some meals?

Then lower the meals-per-week input to match. Prepping just five lunches instead of buying them is often the single easiest place to start, and this tool will show that partial habit still adds up over a year.

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Sources

Berly Sam Varghese · Editor, Investor Sam

Berly Sam Varghese is an engineer who treats money the way he treats any hard problem — something to be engineered, not gambled on. He funded years of education and built real financial stability the patient way, by living below his means and investing rather than borrowing. He writes for the person trying to eat well without blowing the budget. He reviews and approves every article on Investor Sam and checks the figures against primary sources before anything is published. More about our standards.