Money & Business Calculators
Instant calculators for ecommerce, creators, SaaS and business metrics.
Browse by Category
Six themed clusters covering every calculator on the site.
Ecommerce Sellers
9 of 9 live · Marketplace fees, profit and break-even for Etsy, Amazon, eBay, Shopify.
Payments & Processing
4 of 4 live · PayPal, Stripe and international payment processing fees.
Creator Economy
5 of 5 live · YouTube, TikTok, Instagram and Twitch creator earnings.
Business Core
0 of 6 live · Profit margin, ROI, markup, break-even and revenue.
Gross and net profit margin from cost and revenue.
Return on investment for any project, ad campaign or asset.
Convert cost into selling price for a target markup %.
Units or revenue required to cover fixed and variable costs.
Revenue from price, units sold and discount assumptions.
Gross margin % and contribution per unit.
Taxes & Pricing
0 of 4 live · VAT, sales tax, reverse VAT and discount calculations.
Add or remove VAT for any country, with custom rates.
US state and city sales-tax with combined rate breakdown.
Extract net amount from a VAT-inclusive total.
Sale price, savings and effective discount %.
SaaS Metrics
0 of 3 live · MRR, churn rate and customer acquisition cost.
Monthly recurring revenue, expansion and contraction MRR.
Customer and revenue churn rates for any cohort window.
CAC, payback period and LTV/CAC ratio.
Why Profit and Fees?
Built for accuracy, speed, and simplicity
Instant Results
Calculations update as you type. No button to press, no waiting.
100% Free
No signup, no premium tier, no hidden costs. Always free.
Always Accurate
Formulas updated regularly to reflect latest platform fee changes.
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All calculations happen in your browser. We never see your data.