Financial
Intelligence.
Instant Decisions.
Professional calculators for entrepreneurs, e-commerce sellers, and investors. Loan, Tax, Mortgage, Amazon FBA — instant results, no signup.
Every Financial Decision, Calculated
From loan amortization to global tax brackets — our tools are built for accuracy, speed, and professional-grade results.
Loan Calculator
Amortization schedules, what-if scenarios, CSV export
Global Tax Calculator
21 countries, 2020–2025 brackets, FICA & National Insurance
Mortgage Calculator
PITI payments, PMI, down payment, insurance
Etsy Fee Calculator
Listing, transaction, payment & offsite ads breakdown
Amazon FBA Calculator
Referral fees, FBA tiers, net profit margin
Shopify & Stripe
Gateway fee comparison, net revenue, processing rates
POD Profit Calculator
Printify, Printful unit margins & break-even pricing
ROAS Calculator
Break-even ad spend, target CPA, return on investment
Built for Professionals
The same depth and accuracy you'd expect from a Bloomberg Terminal — at zero cost.
Zero Latency Engine
All formulas execute instantly in your browser — no API calls, no waiting. Calculations are memoized for maximum performance.
21 Countries
The Global Tax Calculator supports localized brackets for the US, UK, Canada, Australia, and 17+ more countries with 2020–2025 tax years.
Private by Design
Every calculation runs locally in your browser. We never see your financial data — no accounts, no tracking, no ads.
Export Everything
Download amortization schedules as CSV, print beautiful PDF reports, or share your results with a link. Built for teams.
Interactive Dashboards
Every calculator features live Recharts visualizations — pie charts, line charts, bar charts — that respond to your inputs instantly.
What-If Scenarios
Compare alternative financial paths instantly. See how a 1% rate change or extra $100/month payment affects your total cost.
Ready to make smarter
financial decisions?
No credit card. No signup. Open a calculator and start making better decisions in seconds.