All Calculators
Instant tools for Robux tax (30% marketplace fee), DevEx cash-out rates, Game Pass earnings after tax, pack prices, gift card Robux, and Premium revenue estimates — built for developers and creators.
Robux Tax Calculator
Calculate the Roblox 30% tax (marketplace fee) and see how much Robux you actually receive from Game Pass and developer product sales.
DevEx Calculator
Convert Robux to USD (and approx EUR/GBP/PKR) using the configurable DevEx rate — default 100,000 Robux = $350.
Game Pass Calculator
Price a Game Pass, apply the Roblox marketplace fee, and estimate Game Pass earnings after tax per sale or across volume.
Robux Price Calculator
Estimate how much X Robux costs using official-style purchase pack tiers (e.g. how much is 1000 Robux worth to buy).
Robux Gift Card Calculator
Convert gift card face value to Robux by country using configured store tables (USA, UK, CA, AU, PK, IN).
Premium / Revenue Estimator
Rough estimate of Robux and USD from visits, playtime, and Premium audience share — educational only, not official payouts.