Business finance math you can trust in seconds.
Free calculators for Payment Processing, Pricing & Revenue, Taxes, Business Health, Cash Flow, and Subscription & Unit Economics—with transparent formulas and easy to understand explanations.
Calculator categories
- Payment ProcessingEstimate processor fees and what you actually keep.
- Pricing & RevenuePrice projects and hours so the math works for you.
- TaxesReserve and estimate taxes without spreadsheet guesswork.
- Business HealthMargins, break-even, burn, runway, and ROI at a glance.
- Cash FlowDue dates, late fees, and receivables timing.
- Subscription & Unit EconomicsMRR, ARR, CAC, LTV, and SaaS-style unit economics.
How it works
Every tool shows the inputs, the live result, the formula, and a worked example. Built for independent businesses—not a product pitch, just useful math.
01
Pick a calculator
Browse by category—payments, pricing, taxes, business health, cash flow, or subscription & unit economics.
02
Enter your numbers
Results update live as you type, with large, easy-to-read outputs.
03
Trust the math
Transparent formulas, FAQs, and last-reviewed dates on every page.
04
Save or share
Share any calculator with the same numbers already filled in — no login or setup required.