1. Master Raw vs. Cooked Weight Conversion Chart (US oz & Metric g)
During cooking, meats, poultry, and fish lose 20% to 28% of their weight as water evaporates, concentrating calories into a smaller mass. Conversely, dry grains, pasta, and legumes absorb water and expand 2.3x to 3.5x by weight.
| Food Item (USDA Standard) | Raw / Dry Weight | Cooked Weight Yield | Cooked → Raw Multiplier | Calories & Protein |
|---|---|---|---|---|
| Chicken Breast (Skinless) | 4 oz (113g) / 100g | ~3.0 oz (85g) / 75g | Cooked × 1.33 |
136 kcal (25.5g P) per 4 oz raw |
| Lean Ground Beef / Turkey (93/7) | 4 oz (113g) / 100g | ~2.9 oz (81g) / 72g | Cooked × 1.39 |
170 kcal (24.0g P) per 4 oz raw |
| Top Sirloin Steak | 4 oz (113g) / 100g | ~3.0 oz (85g) / 75g | Cooked × 1.33 |
158 kcal (25.0g P) per 4 oz raw |
| Atlantic Salmon Fillet | 4 oz (113g) / 100g | ~3.2 oz (90g) / 80g | Cooked × 1.25 |
235 kcal (23.0g P) per 4 oz raw |
| White / Basmati Rice | 2 oz (57g) / 100g dry | ~5.6 oz (160g) / 280g | Cooked × 0.36 |
202 kcal (4.0g P) per 2 oz dry |
| Durum Wheat Pasta | 2 oz (57g) / 100g dry | ~4.7 oz (134g) / 235g | Cooked × 0.42 |
200 kcal (7.0g P) per 2 oz dry |
| Rolled Oats (Porridge) | 1.5 oz (43g) / 100g dry | ~5.2 oz (150g) / 350g | Cooked × 0.29 |
163 kcal (5.7g P) per 1.5 oz dry |
| Potatoes (Baked / Air-Fried) | 6 oz (170g) / 100g raw | ~4.8 oz (136g) / 80g | Cooked × 1.25 |
131 kcal (3.5g P) per 6 oz raw |
2. The 3-Step Multi-Serving Batch Recipe Formula
When cooking a multi-ingredient dish like turkey chili, lasagna, or chicken curry for multiple days, never guess what "one ladle" equals. Use the Calorie-Per-Gram (or Ounce) Method:
Step 2: Calorie Density = Total Recipe Calories ÷ Final Cooked Dish Weight (in g or oz)
Step 3: Your Bowl Calories = Weight of Your Serving × Calorie Density
Practical Example: You cook a batch of turkey chili totaling 2,400 calories of raw ingredients. After simmering, the entire pot of chili (minus the empty pot's weight) weighs 1,200 grams (42.3 oz). That equals exactly 2.0 calories per gram (56.7 kcal per oz). When you scoop a 350g (12.3 oz) bowl for dinner, your serving is 700 calories.
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Frequently Asked Questions
How much raw chicken breast is 4 oz (113g) or 150g cooked?
Boneless, skinless chicken breast loses roughly 25% of its weight as water during cooking. Therefore, 4 oz (113g) of cooked chicken breast equals 5.3 oz (151g) of raw chicken (181 kcal, 34g protein), and 150g of cooked chicken equals 200g raw (240 kcal, 45g protein).
Do I need to weigh non-starchy vegetables like lettuce or cucumbers?
Leafy greens and watery vegetables (cucumbers, celery, spinach) have very low caloric density (10–20 calories per cup / 100g). While weighing cooking oils, meats, and starches is important, estimating leafy greens rarely affects your weight loss trajectory.
What if someone else cooked the meal and I couldn't weigh the ingredients?
Weigh your cooked portion using our converter above, or read our guide on tracking calories without a food scale using hand portions and AI photo scanning.