Free Financial Calculators

Smart tools for shared finances. Calculate fair splits, track subscriptions, plan budgets, and visualize your cash flow.

Fair Share Calculator

Split shared expenses proportionally based on income. Perfect for couples, roommates, and families with different earnings.

Subscription Calculator

See the true cost of all your subscriptions. Monthly, yearly, and 5-year totals. Find savings by sharing plans.

50/30/20 Budget Calculator

Plan your budget with the proven 50/30/20 rule. Allocate income to needs, wants, and savings. Works for couples too.

Cash Flow Diagram

Create interactive Sankey diagrams to visualize where your money goes. See the complete flow from income to expenses.

Savings Calculator

Calculate how your savings grow over time with compound interest. Set goals and see how long until you reach them.

Rent Split Calculator

Split rent and utilities fairly among roommates based on room size and features like private bathroom or balcony.

Why Use Financial Calculators?

Managing shared finances doesn't have to be complicated. Our free calculators help you make fair decisions about money, whether you're splitting rent with a roommate, planning a family budget, or tracking subscription costs.

Each tool is designed to give you instant clarity. No sign-up required, no hidden costs. Just enter your numbers and get actionable results.

For automatic tracking, shared budgets, and real-time insights, download the GoodShare app.

Want Automatic Financial Tracking?

GoodShare tracks expenses, splits costs, and manages budgets in real-time. Share with your partner, roommates, or family.

Try GoodShare Free