How much does one person need per month?

We use a “pay yourself first” framework: income → move 20–30% to savings → subtract fixed costs (rent, loans, cards) → divide what remains across the month as your daily spending cap. That daily cap is further split into a meal budget using typical local food prices.

The estimate draws on behavioral economics — mental accounting (allocate first, spend later) and loss aversion: daily caps are easier to stick to than a monthly total, and the system nudges you when you overspend.

The table above only covers food; the full tool (above) folds in rent and loan payments and generates a meal plan matched to your income.

How much does one person need per month to live?

It depends mainly on housing and your eating habits. A common rule: keep rent within ~30% of income, total fixed costs under 50%, save 20–30% first, and the rest is your flexible living budget. Enter your real numbers above for a city-specific estimate.

How much should one person spend on food per month?

Cooking at home typically cuts food costs 50–60% vs eating out. In a mid-cost city, home cooking runs roughly $150–250/month for one; heavy takeout can double that.

What percentage of income should go to rent?

25–30% is the widely cited guideline. Above 40% starts squeezing savings and flexibility.

How much should I save each month?

Pay yourself first: move 20–30% of income into savings at the start of the month, then budget rent and daily life around what remains.

Is this calculator accurate? Where do prices come from?

It uses a cost-of-living index and typical local prices across 14+ global cities (public benchmark data, adjusted by a cost factor). Treat results as a planning reference, not an exact bill.

Is my data safe? Do I need an account?

No sign-up required. Everything is computed in your browser — nothing is uploaded.