A family of four eating a standard diet, cooking most meals at home, and ordering takeout once a week lands somewhere around $1,800 a month once you add it up properly: about $400 a week in groceries, plus $200 a month in restaurant spending. Multiply that by 12 and you get $21,600 a year, which is more than most families realize until they actually sit down and add the receipts. The gap between what people guess they spend on food and what they actually spend is usually the restaurant and takeout line, not the grocery line, since those purchases feel smaller in the moment than they add up to over a month.
Diet tier changes that number more than almost anything else. Moving from a budget approach built around basics like rice, beans, and frozen vegetables up to a standard mix of groceries roughly raises the per-person weekly cost, and premium or organic-leaning shopping raises it again on top of that. Special dietary needs stack on top of whichever tier you pick: going vegan adds roughly a fifth to the grocery total, while gluten-free or allergy-driven shopping typically adds closer to a third, since substitute products cost more than the conventional versions they replace.
Notice that how many days a week you actually cook is not what drives the number here, the diet tier and family size are. Cooking six nights instead of four does not lower your grocery bill on its own; what lowers it is spending less per grocery trip (via diet tier or fewer specialty items) or cutting the restaurant budget, since every dollar moved from takeout to home cooking is a dollar that shows up in the grocery line instead of disappearing into a delivery fee and a tip.
Groceries and restaurant spending are two separate levers
The monthly total here comes from two independent numbers added together: your grocery cost, driven by diet tier, family size, and any special diet, and your restaurant and takeout budget, which you set directly. They do not offset each other automatically. Cutting your restaurant budget in half saves real money regardless of what diet tier you selected, and it is usually the faster lever to pull than trying to shop your way to lower grocery totals.
Why diet tier moves the number so much
Budget-tier shopping leans on basics: bulk grains, beans, frozen vegetables, and generic brands, and it costs meaningfully less per person per week than a standard mix of groceries. Premium or organic-leaning shopping costs more again on top of standard, largely because of ingredient sourcing and brand pricing rather than any change in quantity. Moving one tier down, from premium to standard or standard to budget, is one of the largest single changes you can make to the total.
Special diets are a real, calculable surcharge
Vegan, gluten-free, and allergy-driven diets are not modeled here as vague inconveniences, they are a specific percentage added on top of your base diet-tier cost: roughly a fifth more for vegan, and closer to a third more for gluten-free or allergy restrictions, reflecting the higher price of substitute products compared to their conventional equivalents. If you are managing one of these diets, expect your realistic budget to sit above whatever the base diet tier alone would suggest.
Cooking days is useful context, not a cost driver
The cooking-days input records how many nights a week you actually cook, which is useful for meal planning, but it does not change the grocery total by itself in this model. What actually changes the total is diet tier, family size, special diets, and your restaurant budget. If you want cooking more nights to translate into real savings, the lever to pull is reducing the restaurant budget to match, not just changing the cooking-days number.
Where the fastest savings actually come from
Reducing restaurant and takeout spending tends to save money faster than trying to shop groceries down to a lower tier, since restaurant meals cost several times more per meal than the equivalent home-cooked version. After that, moving down a diet tier or simplifying a special-diet shopping list are the next biggest levers, roughly in that order of impact for most families.