Gumroad Fee Calculator
Simulate your take-home payout after Gumroad's 10% flat fee, Discover marketplace commission (30%), and 2.9% + $0.30 payment processing charges.
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Transparent Financial Utilities
Free Creator Fee Calculators
Stop guessing your net profit. Calculate exact platform cuts, credit card processing fees, and net payouts before publishing your products or setting your prices.
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Amazon KDP Royalty Calculator
Compare 35% vs 70% eBook royalty tiers, account for file delivery fees ($0.15/MB), and compute paperback print costs by page count and trim size.
Launch Calculator →Substack Earnings Calculator
Forecast your newsletter recurring revenue based on subscriber count, free-to-paid conversion rates, Substack's 10% fee, and Stripe billing rates.
Launch Calculator →Ko-fi vs Patreon Fee Calculator
Side-by-side membership comparison. Test Ko-fi's 0% Gold plan against Patreon's 8% to 12% tiers, factoring in micropayment transaction fees.
Launch Calculator →YouTube RPM Earnings Estimator
Estimate AdSense ad revenue ranges across 6 profitable niches (Finance, Tech, Education, Gaming) adjusted by audience geography and video format.
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Why Creator Fee Calculators Matter
Many independent creators price their digital products and memberships by intuition, only to find that platform commissions, payment gateway fees, and cross-border currency conversion eat anywhere from 15% to 40% of gross revenue.
Each calculator in the Legend Tools suite executes purely in your browser using updated platform fee schedules. No accounts are required, no emails are captured, and your financial data never leaves your device.