Budget-to-Macros Meal Planner

First, it builds a diet-appropriate pool of commonly used, budget-friendly meals. Then it estimates calories, protein, and cost per meal, scales your targets to the full week (daily × 7), and generates multiple 7-day combinations based on your chosen meals-per-day frequency. Finally, it scores plans by strongly prioritizing staying within budget, then minimizing how far calories and protein fall short (or exceed).

Meal costs and macros are estimated from typical grocery averages, so regional prices and brand differences can shift the totals. Likewise, calories/protein are based on standard serving assumptions, and the planner doesn’t model micronutrients, sodium, cooking yield changes, or food waste. If your budget is tight, the tool may favor more cost-effective staples to improve calorie coverage and then use high-protein swaps when possible.

If your weekly budget is extremely low relative to your calorie and especially protein targets, the tool may classify the result as “Over budget” or “On budget, low protein/calories,” because feasible meal combinations are limited. Also note that macro targets are per day—make sure your inputs reflect what you truly need (e.g., training days vs. rest days). For best accuracy, treat the plan as a starting point for shopping and make swaps based on the specific nutrition labels and prices you find.

When the best-scoring plan lands on your budget but misses calories or protein beyond tolerance, the verdict will reflect that (e.g., “On budget, low protein”). If meals/day doesn’t divide evenly into a 7-day schedule, the planner distributes meals as evenly as possible rather than forcing exact counts. If inputs are invalid (budget ≤ 0, targets ≤ 0), the planner can’t generate a meaningful plan, so you’ll need to adjust your values.