Grocery Budget Optimizer

"Eating out is expensive" is easy to say and hard to quantify, so this calculator turns it into a direct per-meal comparison: it divides your weekly grocery budget by the number of meals you actually cook from it to get a Grocery Cost Per Meal, and does the same with your weekly restaurant spending and restaurant meal count to get a Dining Out Cost Per Meal. Subtracting one from the other gives the real savings available every time a restaurant meal gets swapped for a home-cooked one, and that per-meal savings is projected forward assuming you replace up to three dining-out meals a week (capped there even if you eat out more often, since three extra home-cooked meals a week is treated as a realistic ceiling for most households) — multiplied by your weeks-per-month setting for a Monthly Savings figure and then by 12 for an Annual Savings Potential. The Dining-to-Grocery Cost Ratio gives a quick multiplier — "eating out costs you 3x per meal," for instance — that's often more persuasive than a raw dollar gap.

Two limitations are worth flagging: the math above is a pure per-meal cost comparison, so it doesn't scale by household size even though that field is collected for context, and it says nothing about groceries that spoil unused or get thrown away, which can erode the grocery-side savings in practice. It's best read as a directional nudge — how much cooking three more meals a week could realistically be worth — rather than a guaranteed budget line.