Divide a batch of cooked food into equal meal-prep portions.
Usage Tip
Cool food quickly and refrigerate within two hours; freeze portions you will not eat within four days.
How to Portion Meal Prep
Good meal prep starts with a simple division: cook one big batch, then split it into equal portions that each hit your calorie and protein target. The trick is working from the recipe total. If you know a batch is roughly 2,400 calories and 180g of protein, dividing it into 6 meals gives 400 calories and 30g of protein each. The calculator above does this both ways: tell it how many meals you want, or tell it your per-meal target and it tells you how many meals the recipe makes.
Portion Size by Goal
| Goal | Typical portion |
|---|---|
| Weight loss | 350–500 g |
| Maintenance | 500–700 g |
| Muscle gain | 700–1000 g |
Meal Prep Portion Chart
| Food | Typical portion |
|---|---|
| Chicken / lean meat | 4–8 oz |
| Rice / grains | 1/2–1 cup cooked |
| Vegetables | 1–2 cups |
| Pasta | 1–2 cups cooked |
| Potatoes | 1 medium / ~150 g |
Meal Prep Planning Guide
Plan the week backwards from the number of meals you need: meals per day times days equals total containers. Cook in batches that divide evenly into that number, label each with the date, and store the back half of the week in the freezer so nothing spoils. A standard rhythm is to prep 4–5 days of lunches and dinners in one session, keeping breakfasts simpler.
Portion Control Guide
A kitchen scale is the single biggest upgrade to meal prep accuracy – eyeballing portions is where calorie targets quietly drift. Weigh the cooked batch, divide by the number of meals, and portion to that gram weight. For consistency, fill every container to the same weight rather than the same visual level, since denser foods pack more calories into the same space.
Calorie-Based Meal Prep Guide
If you have a daily calorie target (from the Calorie & TDEE Calculator), divide it across your meals. Example targets per meal:
| Goal | Calories per meal | Daily (3-4 meals) |
|---|---|---|
| Weight loss | ~400 | ~1,400–1,600 |
| Maintenance | ~600 | ~2,000–2,200 |
| Muscle gain | ~800 | ~2,600–3,000 |
Macro-Based Meal Prep Guide
To hit macros, set both a calorie and a protein target per meal. A common high-protein meal-prep split is roughly 40% protein, 35% carbs, 25% fat. For a 500-calorie meal that is about 50g protein, 44g carbs, 14g fat. Use the Macro Calculator for your daily split, then divide by meals. Protein is usually the macro to anchor on – aim for 30–50g per meal.
Weight-Loss Meal Prep Guide
For a cut, keep meals high in protein and volume but moderate in calories – roughly 350–500g portions at 400–500 calories with 35–45g protein. Lean proteins, plenty of vegetables, and a measured carb (rice, potato) keep meals filling without overshooting. Pre-portioning is especially powerful here because it removes the in-the-moment decision to take more.
Muscle-Gain Meal Prep Guide
For a bulk, meals run larger – 700–1000g at 700–900 calories, 45–55g protein, with generous carbs around training. Calorie-dense additions (olive oil, nuts, rice) let you hit a surplus without enormous volume. Spread protein across 4–6 meals so intake is steady through the day.
Meal Prep Container Guide
Match the container to the portion: small (16 oz / ~2 cups) for cut-sized meals, medium (24 oz / ~3 cups) for maintenance, large (32 oz / ~4 cups) for bulking. Two- and three-compartment containers keep wet and dry foods separate so nothing turns soggy. Glass holds up to reheating and stains less; BPA-free plastic is lighter and freezer-friendly.
Food Storage & Safety
Cool food quickly, refrigerate within two hours, and store at or below 40°F. Typical keeping times:
| Food | Fridge | Freezer |
|---|---|---|
| Cooked chicken / meat | 3–4 days | 2–6 months |
| Cooked rice / grains | 4–6 days | 1–2 months |
| Cooked vegetables | 3–5 days | 2–3 months |
| Full prepared meals | 3–4 days | 2–3 months |
Prep 3–4 days in the fridge and freeze the rest. Reheat to 165°F.
Common Meal Prep Mistakes
- Eyeballing portions instead of weighing – calorie targets drift fast.
- Cooking a batch that does not divide evenly into your meal count.
- Forgetting to date containers, then guessing what is still good.
- Keeping everything in the fridge – freeze the back half of the week.
- Ignoring protein per meal, the macro that matters most for satiety and muscle.
Frequently Asked Questions
How do I figure out meal prep portions?
Divide your recipe total by the number of meals. For a target, divide total calories by your per-meal goal to get the number of meals.
How many calories should a meal prep meal be?
About 400 for weight loss, 600 for maintenance, 800 for muscle gain – adjust to your daily target divided by meals.
How much protein per meal?
Aim for 30–50g per meal, anchored to your daily protein goal.
How big should a meal prep portion be?
Roughly 350–500g cutting, 500–700g maintaining, 700–1000g bulking.
How long does meal prep last?
3–4 days refrigerated; 2–3 months frozen for full meals. Reheat to 165°F.
How many meals should I prep at once?
Most people prep 4–5 days of lunches and dinners, freezing any beyond 3–4 days out.
Related Meal Prep Calculators
Nutrition note: portion needs vary with body size, activity level, and goals, and calorie/macro figures are estimates that depend on your recipe and ingredients. This tool divides a recipe into equal portions – it is a planning aid, not personalized nutrition or medical advice. Follow safe food-handling and storage times. For personalized targets, consult a registered dietitian.