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100g Bread Calories — 252 kcal | Nutrition Calculator
100g of Bread, whole wheat contains 252 kcal of calories. Free converter with serving tables, volume conversion, raw vs cooked, and FAQs. Data from USDA FoodData Central.
100g Bread Calories Calculator
100g of Bread, whole wheat contains 252 kcal of calories. Use the converter above to calculate any weight or volume, or explore the tables below for common serving sizes. All values from USDA FoodData Central.
Result
100g Bread Calories
252 kcal calories
Computed from 100 g of food and USDA FoodData Central reference.
Reverse Calculation
Calories target to food amount
100 g (3.53 oz, 1.63 cups)
Reverse math uses 252 kcal calories per 100 g from USDA FoodData Central reference.
Bread Macros by Serving Size
Bread Macros by Common Serving
Bread Calories Range Around 100g
Bread Macros by Volume Measure
Bread Prep-State Logging Check
Bread Nutrient Efficiency Per Calorie
Bread Dietary Profile
Bread is a versatile food suitable for most dietary patterns. Check macros above for your specific dietary requirements.
Bread Benefit Signals
- Portion-controlled base: Best value comes from weighing the serving and matching the source prep state. Basis: computed fallback.
Bread Daily Nutrient Coverage
Smart Calories Substitutes for Bread
Bread Condition-Aware Nutrition Notes
Real-World Bread Serving Sizes
- Small weighed portion (~50g): 126 kcal calories. Use when testing a small serving or recipe ingredient amount.
- Standard nutrition reference (~100g): 252 kcal calories. Matches the USDA per-100g source basis used on this page.
- Large weighed portion (~150g): 378 kcal calories. Useful for meal-prep portions and larger servings.
Common Bread Measurement Mistakes
- Mixing raw and cooked entries changes the math. This page uses the listed source record for Bread, whole wheat.
- Adding oil, sauces, sweeteners, breading, or drained liquid changes calories and macros beyond the base food values.
- For calories tracking, keep the same unit basis across the meal: grams, ounces, cups, or count-based servings should not be mixed without conversion.
Bread Calories — Frequently Asked Questions
How much calories is in 100g of Bread? 100g of Bread contains 252 kcal of calories (USDA FoodData Central).
How much calories in one Bread? A typical bread weighs about 35g and contains 88.2 kcal of calories. This is calculated as 35g ÷ 100 × 252 = 88.2 kcal.
How much calories is in 1 cup of Bread? One US cup of bread weighs approximately 62g (density: 260 kg/m³). That serving contains 156.2 kcal of calories — computed as 62g ÷ 100 × 252.
How many grams of Bread do I need to eat to get 500 kcal of calories? To reach 500 kcal of calories from Bread, you need approximately 198g — calculated as (500 ÷ 252) × 100 = 198g.
Is Bread high in calories? Bread has a moderate calories content at 252 kcal per 100g — neither especially high nor low.
How efficient is Bread as a source of calories per calorie? Bread provides 100 kcal of calories per 100 kcal, making it excellent as a calories-per-calorie source. This is useful for calorie-restricted diets where macronutrient density matters.
What formula does this Bread calories calculator use? The calculator uses calories = weight in grams / 100 x 252 kcal. For example, 100g of Bread gives 252 kcal of calories. Volume entries are first converted to grams using the food density value, then the same per-100g formula is applied.
Is Bread a good food for weight gain or calorie surplus goals? For weight gain or calorie surplus goals, Bread is a decent option — with 252 kcal of calories per 100g. For best results, combine Bread with other foods to hit your daily macro targets.
How reliable is the source data for Bread? Bread uses USDA FoodData Central reference as the nutrition source. Gram-based calculations use the per-100g source values, while cup and spoon estimates depend on the listed density and should be treated as practical serving estimates.
Should I measure Bread raw or cooked? Bread should be logged in the same prep state as the source record. If you weighed it cooked, avoid comparing it directly with a raw entry unless a cooked yield factor is available.
How to Calculate Bread Calories
- Weigh raw. Place your bread on a kitchen scale before cooking to get the most accurate starting weight.
- Enter weight into the calculator. Select your unit (g, oz, lb, or cup) and hit Calculate.
- Read the result. The calculator shows calories content for your exact portion.
- Compare servings. Use the serving range table below to quickly compare calories across portion sizes.
- Log to your tracker. Enter the raw weight and raw entry in your nutrition app for consistent macro tracking.
Why Volume ≠ Weight: Bread Density Explained
Bread is very light (260 kg/m³ — about 0.26× the density of water), so a 1-cup measure holds only ~62 g.
Why does density matter? The same volume can hold very different amounts of food depending on how dense it is. Oats (350 kg/m³) are light and airy — 1 cup = ~80 g. Water has a density of 1000 kg/m³ — 1 cup = 236 g. This is why nutrition labels use weight (grams), not volume — it's a more reliable measure.
Formula: mass (g) = volume (mL) × density (kg/m³) ÷ 1,000. This calculator uses this formula automatically when you enter a volume measure for Bread.
Bread Page Quality Signals
Source, density, prep-state, serving, and allergen checks used to decide whether this page is safe to promote from generated to indexed.
Data Sources & Methodology
Data source: USDA FoodData Central.
Computation method: Macro values are calculated by multiplying the food's per-100g value by the requested weight in grams, then dividing by 100. Volume inputs are first converted to grams using the food's density (kg/m³) from USDA data, then the same formula applies: calories = (weight_g / 100) × caloriesPer100g.
Accuracy note: Macro values represent averages across measured samples; individual items may vary ±5–10% depending on brand, farming method, and preparation technique. For clinical nutrition, consult a registered dietitian.
Update policy: Macro values are reviewed quarterly against USDA FoodData Central updates. Page last verified: 2026.