Pro Rata Calculator

Pro rata means "in proportion." Split any total — a bill, rent, dividend, or payout — so each party pays or receives an amount proportional to their units, days, or percentage share.

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💰 Fair splits

Move-in mid-month? Partial shares? Pro rata divides the cost by the exact share each side owes.

📅 By days

Prorate monthly rent or subscriptions across partial billing periods, day by day.

📈 By ownership

Allocate dividends, profits, or insurance payouts in proportion to units held.

🔒 Private

All calculations run locally in your browser.

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