Practical business decisions

Business calculators for clearer decisions.

VentureMath brings break-even, return on investment, and cash runway into simple calculators. Explore a scenario, see the arithmetic behind the result, and note the assumptions before using it to plan.

  • Clear assumptions
  • Working shown
  • No account required
  • Inputs stay local

Start with the decision

What are you working out?

Each tool keeps the model narrow and explains its assumptions, so a useful answer never hides the working behind it.

Tool library

All calculators

Search the available calculators. Save favourites on this device, or return to something you opened recently.

Investment & cash

Cash runway

Estimate how long cash lasts at your current monthly inflows and spending.

Built for useful estimates, not false precision. Results depend on the inputs and assumptions shown in each tool. Each tool explains its formulas and limitations.

Keep VentureMath handy

Use your browser menu to look for Install app or a similar option.

iPhone or iPad: open the Share menu and choose Add to Home Screen. Installation options depend on your browser.

Open this website in your browser and use its install or Add to Home Screen option. After the core files have cached, available calculators work offline. Saved tools stay on this device.