Every calculator. One spreadsheet each.
Free. No signup. The math runs in your browser; your inputs never leave the page. Grouped by topic below.
Money & Business →
Unit economics, pricing, break-even, and ROI — the math a business runs on.
Break-Even Calculator
How many sales per month before you stop bleeding.
PricingHourly Rate Calculator
What you must charge to hit your income target after overhead.
Unit economicsCustomer Lifetime Value
CLV plus the 3:1 acceptable customer-acquisition cost.
AcquisitionLead Cost Calculator
CAC, ROAS, and profit per lead from your ad spend.
AI & Automation →
What an AI tool or automation actually saves you, before you subscribe.
AI ROI Calculator
Payback days, 12-month net, 3-year NPV on a tool's time savings.
QuizAI Tool Quiz
Five questions. One or two recommendations. No 30-tool listicles.
CompareTool Stack Comparator
Two tools, feature by feature and dollar by dollar.
AutomateAutomation Time Saver
Annual hours and dollars back from your recurring tasks.
Cybersecurity & Privacy →
What online protection is actually worth paying for.
Insurance & Protection →
Coverage you actually need — illustrative rules of thumb, not advice.
Compound Interest
Final balance and the interest that did the work.
InvestingSIP Calculator
Corpus, total invested, and the compounding gain.
TaxTax Bracket (India + US)
Effective tax + take-home. India FY 2026-27 + US 2026.
RetirementRetirement Target
The corpus you need + the monthly contribution to hit it.
WithdrawalRetirement Withdrawal Rate
Bengen + Trinity success-rate test. The 4% rule, honestly.
Social SecuritySS Claiming Age
62, FRA, or 70? Lifetime payout and breakeven age.
BudgetSenior Budget (Fixed Income)
Income vs essential and discretionary expenses, 5-year view.
AdSense Earnings Estimator
Realistic RPM by niche, region, and maturity.
YouTubeYouTube Revenue Estimator
AdSense + sponsorship, long-form vs Shorts.
AffiliateAffiliate ROAS
ROAS, profit, and a scale-or-kill verdict on ad spend.
PaybackSide Hustle Payback
When a side project clears its startup cost.
Not sure where to start?
Run the free AI audit — three calculators in sequence, five minutes total. By the end you’ll know whether a tool pays for itself, where your hours actually go, and which subscriptions are bleeding you.