TDEE & Calorie Deficit Guide: How Many Calories to Eat to Lose 1 lb of Fat Per Week
For a moderately active 185-lb, 5-foot-10 adult (4 workouts/week), maintenance TDEE is ~2,830 kcal/day, making ~2,330 kcal/day the target for 1 lb/week sustainable fat loss. Includes interactive TDEE (Total Daily Energy Expenditure) & Calorie Deficit Calculator pre-loaded with this exact scenario plus step-by-step formula breakdown.
In-Depth Analysis — TDEE & 500-Calorie Deficit
For a moderately active 185-lb, 5-foot-10 adult (4 workouts/week), maintenance TDEE is ~2,830 kcal/day, making ~2,330 kcal/day the target for 1 lb/week sustainable fat loss.
Why this scenario matters: Calculate your Basal Metabolic Rate (BMR), maintenance TDEE calories, and 500-calorie fat loss target. Using the pre-loaded interactive TDEE (Total Daily Energy Expenditure) & Calorie Deficit Calculator above, you can test how small adjustments to the baseline inputs impact the final outcome in real time.
Formula & Verification Methodology: Deterministic RFC & standard specification engine. Benchmarked against industry quantitative standards. Compare the 6-tier Reference Benchmark Table above to evaluate conservative, baseline, and aggressive parameter scaling.
Scenario Comparison & Benchmark Table (TDEE Calorie Calculator)
Compare how scaling Weight (lbs) affects your output (click any row to load those values into the calculator above):
| Weight (lbs) | Daily Maintenance Calories (TDEE) | Fat Loss Target (-500 kcal/day) | Resting BMR / Lean Bulk (+300) |
|---|---|---|---|
| 88 | 2,076 kcal/day | 1,576 kcal/day (~1 lb/wk) | 1340 BMR / 2376 Bulk |
| 131 | 2,379 kcal/day | 1,879 kcal/day (~1 lb/wk) | 1535 BMR / 2679 Bulk |
| 175 (Baseline) | 2,688 kcal/day | 2,188 kcal/day (~1 lb/wk) | 1734 BMR / 2988 Bulk |
| 219 | 2,997 kcal/day | 2,497 kcal/day (~1 lb/wk) | 1934 BMR / 3297 Bulk |
| 263 | 3,307 kcal/day | 2,807 kcal/day (~1 lb/wk) | 2133 BMR / 3607 Bulk |
| 350 | 3,918 kcal/day | 3,418 kcal/day (~1 lb/wk) | 2528 BMR / 4218 Bulk |
Mathematical Formula & Step-by-Step Guide
Primary mathematical equation used by this model:
- Enter your Weight (lbs) and Height (Inches) (or load Lower (105), Baseline (175), Higher (262) with one click) to establish your baseline scenario.
- Adjust Age (Years) and Activity Multiplier (1.2=Desk, 1.55=Mod, 1.72=Active) to see how the primary result and visual breakdown bar respond in real time.
- Scan the 6-tier TDEE Calorie Calculator Reference Benchmark Table below or click Download CSV / Print PDF to save your analysis.
Nutritional and residential material estimates include standard safety buffers; verify structural specifications with a licensed local contractor or dietitian.