How Much Should I Spend on Groceries Per Month?

The official answer: USDA's four food plans

When people ask what groceries should cost, there is an actual official source: the USDA Food Plans. The Department of Agriculture prices four market baskets, Thrifty, Low-Cost, Moderate-Cost and Liberal, each specifying realistic quantities of foods for a nutritious diet prepared at home. Costs are updated every month using the Consumer Price Index, so the figures track food inflation rather than sitting still. The costs live on the USDA monthly report page. In the July 2026 report, the reference family of four, a man and woman aged 20 to 50 with a child aged 6 to 8 and a child aged 9 to 11, costs $1,024.90 a month on the Thrifty plan and $1,682.90 on the Liberal plan.

Those four levels describe spending styles, not quality of food. The Thrifty plan is the basis for SNAP maximum benefits and assumes significant cooking from scratch. The Moderate-Cost plan, at $1,391.10 for the same family, matches how most households shop, with some convenience foods and brand-name items. Treat these as a healthy-diet benchmark: your real bill includes snacks, sodas and restaurant meals that the plans exclude, which is why many households run above the Moderate line.

What one person costs, by age and plan

The USDA prices each age group separately, because a teenage boy and a retired woman eat different amounts. Here are the July 2026 monthly figures for individuals in four-person households:

Two patterns stand out. Adult men cost roughly $50 to $60 a month more than adult women on most plans, and teenagers approach adult costs, with a male 14 to 19 priced at $403.70 on the Moderate plan, more than his mother. The calculator above uses exactly these figures, so pick the closest age bracket for each member of your household.

Adjust for your household size

The per-person figures assume everyone lives in a four-person household, because cooking for four wastes less per person than cooking for one. USDA publishes the correction factors itself:

The calculator applies these automatically from the member count. A single man on the Moderate plan: 398.70 x 1.2 = $478.44 a month. A couple, 398.70 + 337.10 = 735.80, then 735.80 x 1.1 = $809.38. Three adults on Moderate, two men and one woman, sum to 398.70 x 2 + 337.10 = 1,134.50 before the adjustment, and 1,134.50 x 1.05 = $1,191.23. The pattern is simple: per-person costs fall as households grow, by as much as a quarter between one person and seven.

Worked example: the family of four

Here is the full arithmetic for the reference family, the number USDA itself publishes, so you can see how the pieces assemble. On the Moderate-Cost plan, July 2026:

• Man 20 to 50: $398.70
• Woman 20 to 50: $337.10
• Child 6 to 8: $305.10
• Child 9 to 11: $350.20
• Sum: 398.70 + 337.10 + 305.10 + 350.20 = $1,391.10
• Household of four: no adjustment, so the monthly budget is $1,391.10

Switch the plan and the same family lands at 319.20 + 253.90 + 209.60 + 242.20 = $1,024.90 on Thrifty, $1,127.90 on Low-Cost, and $1,682.90 on Liberal. The spread between the cheapest and most generous plan is $658 a month, about $7,900 a year, which is the practical size of the food choices a household makes every week.

What this budget does not include

The USDA Food Plans price food at home, nothing else. Household spending that gets lumped into a "grocery run" but falls outside the official number:

• Restaurants, takeout and delivery. All food away from home is excluded, and the average household spends several hundred dollars a month on it
• Paper goods, cleaners and toiletries. Not food, so not in the plans, even though the same cart carries them
• Pet food. Excluded entirely
• Alcohol. Excluded from all four plans

This is the most common reason a personal total exceeds the USDA figure. If your receipt shows $1,600 a month for a family of four against a $1,391.10 benchmark, check how much of it is detergent, dog food and DoorDash before concluding you overspend on food. A useful exercise is to split one typical receipt into food versus non-food versus prepared meals, then compare only the true food-at-home share to the plan.

Prices move, so use the newest report

USDA re-prices all four plans every month against the Consumer Price Index that the Bureau of Labor Statistics publishes at bls.gov, and food inflation compounds. The Thrifty reference family cost $975.70 in January 2025 and $1,024.90 by July 2026, a rise of about 5% in eighteen months. Alaska and Hawaii get separate adjustments: the reference family costs $1,276.30 a month in Anchorage and $1,555.70 in Hawaii on the Thrifty plan, roughly 25% and 52% above the mainland figure.

The practical habit: whenever you revisit your budget, look up the latest Monthly Cost of Food report on the USDA site rather than reusing an old number, and note its month. This page's figures are from the July 2026 report, published August 2026. If you are comparing to an older article quoting a smaller total, the difference is probably the date, not your shopping.

There is also a seasonal rhythm worth budgeting for. Grocery prices do not climb evenly: beef, eggs and citrus have well-documented seasonal swings, and holiday weeks can lift a family's basket 15% or more against a normal week. Building the USDA monthly figure as a twelve-month average, then letting individual weeks run above and below it, is steadier than expecting every week to hit the same number. Households paid weekly should still think in monthly terms, because the plan costs are monthly by design and weekly targets drift when the month has five shopping weekends instead of four.

Turning the number into a weekly habit

A monthly figure only helps if it survives contact with a shopping week. Divide it: $1,391.10 a month is about $321 a week for the family of four, since 1,391.10 / 4.333 = $321.05 using USDA's own weeks-per-month convention. Two habits make the weekly number stick. First, shop with the plan's structure in mind: the plans assume nearly all meals are cooked at home, so a week with three restaurant meals has to be offset somewhere. Second, track the receipt total per trip against the weekly figure for one month before changing anything, so you adjust from evidence rather than guilt.

If the comparison lands badly, the plan ladder gives a direction. Moving the family of four from Moderate to Low-Cost saves $263.20 a month, and the plans differ mainly in convenience items, brand choices and meat quantities rather than in basic nutrition. Pair the shift with the household-size rule already built into the calculator and most households find a defensible target within one or two reports of trying.

Storage and waste close the loop between the plan and the receipt. USDA's plans assume the food gets eaten, so a household discarding a quarter of its produce effectively pays a quarter more than the plan level it shops at. Simple fixes carry most of the weight: a five-minute fridge inventory before every trip, freezing meat in meal-sized portions the day it arrives, and putting the most perishable items at eye level instead of the crisper drawer where they hide. None of these change what you buy, only how much of it reaches the table, which is why waste control usually outperforms couponing as a first lever when the monthly total comes in above target.

Special situations: babies, teens and solo shoppers

Some brackets behave differently in practice. A formula-fed one-year-old's plan cost of $114.50 to $226.80 assumes breastfeeding or standard quantities, and real formula costs can exceed the plan line, so budget that separately if applicable. Teenagers deserve honesty: a male 14 to 19 costs $403.70 a month on the Moderate plan, more than any adult woman, and growth spurts push real appetites beyond averages. Households with a member on a medical diet, gluten-free or diabetic meal plans, should price the specialty items directly since the plans use mainstream foods.

Solo shoppers should also notice what the 20% adjustment does and does not cover. It corrects the cooking economies of scale, but a single person still pays the same shelf prices as everyone else, so sales and bulk formats help less. The most reliable solo strategy is repetition: planning four or five repeating dinners compresses waste and makes the $478.44 single-male Moderate figure achievable, while daily improvisation tends to drift toward the Liberal column of spending.