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Meal Prep Calculator

Plan portions, grocery lists, and costs for weekly meal prep

Total Containers

10

Cost/Meal

$2.62

Weekly Cost

$26.23

Prep Time

46 min

Total Containers

10

meals to prep

Cost/Meal

$2.62

Weekly Cost

$26.23

Prep Time

46m

Calories/Meal415 cal
Protein/Meal63g

Calories vs Target

415 / 500 cal83%

Cost Comparison (per meal)

Meal Prep$3
Frozen Meals$5
Restaurant$14

Example Calculations

110 Chicken & Rice Meals (5 days, 2/day)

Inputs

Meals per Day2
Days5
Servings per Meal1
ProteinChicken Breast ($3.99/lb)
GrainWhite Rice ($1.29/lb)
VegetableBroccoli ($2.49/lb)
Target Calories500

Result

Total Containers10
Protein to Buy4.03 lbs
Grain to Buy3.04 lbs
Veggies to Buy2.50 lbs
Cost per Meal$2.62
Total Weekly Cost$26.20

With 500 cal target: 40% from protein = 200 cal, at 31 cal/oz = 6.45 oz chicken per meal. 10 meals = 64.5 oz = 4.03 lbs. Grain: 35% = 175 cal at 36 cal/oz = 4.86 oz/meal. Total = 48.6 oz = 3.04 lbs. Veggies: 4 oz per meal = 2.5 lbs.

221 Tofu & Quinoa Meals (7 days, 3/day)

Inputs

Meals per Day3
Days7
Servings per Meal1
ProteinTofu ($2.49/lb)
GrainQuinoa ($4.99/lb)
VegetableMixed Veggies ($1.99/lb)
Target Calories450

Result

Total Containers21
Protein to Buy11.81 lbs
Grain to Buy6.08 lbs
Veggies to Buy5.25 lbs
Cost per Meal$3.34
Total Weekly Cost$70.20

Tofu at 20 cal/oz needs 9 oz per meal for 180 cal (40% of 450). 21 meals = 189 oz = 11.81 lbs. Quinoa at 34 cal/oz needs 4.63 oz/meal. Total grain = 97.3 oz = 6.08 lbs. Veggies at 4 oz/meal = 84 oz = 5.25 lbs.

Frequently Asked Questions

Q

How much protein should I buy for weekly meal prep?

The amount depends on your calorie target and meals per week. A typical 500-calorie meal with 40% protein calories needs about 6–8 oz of chicken breast per serving. For 10 meals a week, plan on roughly 4–5 lbs of protein.

  • Chicken breast: ~8.8g protein/oz at 31 cal/oz — best protein-to-calorie ratio
  • Ground turkey: ~8g protein/oz at 34 cal/oz — versatile for bowls and wraps
  • Salmon: ~6.3g protein/oz at 52 cal/oz — highest cost but rich in omega-3
  • Tofu: ~2.3g protein/oz at 20 cal/oz — cheapest option at ~$2.49/lb
  • Buy 10–15% extra to account for trimming and cooking shrinkage
ProteinProtein/ozCal/ozPrice/lb
Chicken Breast8.8g31$3.99
Ground Turkey8.0g34$4.49
Ground Beef7.3g71$5.99
Tofu2.3g20$2.49
Salmon6.3g52$8.99
Q

Is meal prep actually cheaper than eating out?

Yes. The average meal prep costs $3–$5 per meal compared to $12–$15 at a restaurant or $5–$7 for frozen meals. A household prepping 10 meals per week saves $80–$120 weekly versus dining out.

  • Meal prep average: $3–$5 per serving with fresh ingredients
  • Frozen meals average: $4–$7 per serving with less nutritional value
  • Restaurant meals average: $12–$18 per serving including tip
  • Annual savings of $4,000–$6,000 for one person switching from restaurants to meal prep
  • Buying proteins in bulk (family packs) cuts costs by 20–30%
Q

How long does meal prep take?

A typical 10-meal weekly prep session takes 45–90 minutes depending on ingredients. Chicken takes 25 minutes to cook, rice 20 minutes, and most vegetables 10–15 minutes. Cooking in parallel cuts total time significantly.

  • Prep and chop vegetables: 10–15 minutes
  • Cook protein (chicken/turkey/beef): 15–25 minutes
  • Cook grain (rice/pasta/quinoa): 12–30 minutes in parallel
  • Portion into containers: 5–10 minutes for 10 meals
  • Total time for 10 meals: 45–60 minutes with parallel cooking
Q

What container size should I use for meal prep?

A 32 oz container fits most standard meals with protein, grain, and vegetables. Use 24 oz for lighter meals or portion control, and 48 oz for high-calorie or family-sized portions.

  • 16 oz: snack-sized portions or side dishes only
  • 24 oz: lighter meals, good for 400–500 calorie targets
  • 32 oz: standard meal size for 500–650 calorie meals
  • 48 oz: large meals or 700+ calorie targets for active individuals
  • Glass containers last longer but weigh more; BPA-free plastic is lighter for transport
ContainerBest ForCalorie Range
16 ozSnacks, sides200–350 cal
24 ozLight meals400–500 cal
32 ozStandard meals500–650 cal
48 ozHigh-cal meals650–800 cal
Q

How many calories should each meal prep container have?

Target 400–600 calories per meal for most adults. Active individuals or those building muscle may need 600–800 calories. The macro split of 40% protein, 35% carb, and 25% fat provides balanced nutrition.

  • Sedentary adults: 400–500 calories per meal (3 meals + snacks)
  • Moderately active: 500–600 calories per meal
  • Very active / muscle building: 600–800 calories per meal
  • Aim for 30–40g protein per meal for muscle maintenance
  • Adjust portions, not ingredients — keep the same recipe but scale up or down
Q

How long do prepped meals last in the fridge?

Most meal prep containers last 4–5 days refrigerated at 40°F or below. Freeze meals for days 5–7 to maintain freshness and food safety. Chicken and rice meals freeze particularly well.

  • Refrigerator (40°F): 3–5 days for cooked chicken, beef, tofu
  • Freezer (0°F): up to 3 months for most prepped meals
  • Rice-based meals: reheat within 4 days to avoid bacterial growth
  • Store meals in airtight containers to prevent moisture loss
  • Label containers with prep date to track freshness

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Last Updated: Mar 9, 2026

This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.

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