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Free calculators

Each calculator answers one money decision with transparent math. You never need an account, and calculator inputs stay in your browser unless a tool clearly says otherwise.

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Debt Payoff Calculator: snowball vs avalanche

Enter your debts and see your debt-free date, the total interest, and the payoff order for both methods side by side. Free, private, and no sign-up. Find my debt-free date →

Software decision calculators

AI Adoption Map: Which Departments Should Start Using AI First?

A free 5-minute assessment that maps each department by AI opportunity and readiness and lists the tasks to automate first.

Updated Oct 19, 2026

Money calculators

Business software

AI Tool Cost Calculator

Add up what your AI and SaaS stack really costs per year — and find the overlaps worth cutting.

Total my stack Finance

Salary After Tax Calculator

Know your real take-home pay after tax

Calculate take-home pay Finance

Millionaire Calculator

When will you actually be a millionaire?

Find my millionaire date Money & habits

What Happens If Simulator

Simulate the consequences of any daily habit

Run a scenario Health & finance

Medical Bill Explainer

Understand your US hospital bill in plain English

Explain my bill

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Tell us which software or money decision you are stuck on. The most-requested ones get built first. Suggest a calculator.