Robux Tax Calculator & DevEx Calculator
Instantly calculate Roblox's 30% marketplace fee, how much to charge so you receive a specific Robux amount after tax, and what your Robux are worth when cashing out via DevEx. No sign-up required, results calculate in real time.
Robux Marketplace Tax
Enter the listed price. Roblox deducts 30%, you receive 70%, floored to the nearest whole Robux.
Quick amounts
Results
You Receive (after 30% tax)
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R$ 0 Robux
Roblox Takes (30% fee)
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R$ 0 Robux
Math.floor(price × 0.7). Roblox always rounds down.
What Is Roblox Marketplace Tax?
Roblox charges a 30% marketplace fee on all user-to-user transactions, including game passes, clothing, and developer products. This means creators always receive 70% of the listed price, rounded down to the nearest whole Robux.
What Is DevEx in Roblox?
DevEx (Developer Exchange) lets eligible Roblox developers convert their earned Robux into real money. The current rate is $0.0038 per Robux (increased 8.5% in September 2025). Minimum cashout is 30,000 Robux and requires Roblox Premium membership.
Why Does Cover Tax Matter?
If you want to receive exactly 100 Robux from a sale, you can't just charge 100, you'd only get 70. The "cover tax" calculation tells you to charge R$143 instead, so after the floor operation you receive exactly 100 Robux. Critical for game pass and UGC pricing.
Frequently Asked Questions
How much Robux tax does Roblox take?
Roblox takes 30% of every Robux transaction in the marketplace. Whether you're selling a game pass, a piece of clothing, or a developer product, you keep 70% of the listed price. The amount is calculated using Math.floor(price × 0.7) because Robux only exist as whole numbers.
What is the current DevEx rate in 2026?
As of September 5, 2025, the current DevEx rate is $0.0038 USD per Robux (equivalent to $380 per 100,000 Robux). This represents an 8.5% increase from the previous legacy rate of $0.0035. Robux earned after September 5, 2025 qualify for the new rate.
How do I calculate the price to charge to receive a specific amount of Robux?
Use the formula: Math.ceil(desiredRobux ÷ 0.7). For example, if you want to receive exactly 100 Robux after tax, you need to charge R$143 (ceiling of 100 ÷ 0.7 = 142.857...). Use the "Cover Tax" tab above to calculate this instantly.
Does Roblox always round down the creator's earnings?
Yes. Roblox uses Math.floor() to calculate creator earnings since fractional Robux don't exist. This is why the "cover tax" formula uses Math.ceil() in the opposite direction to compensate. Getting this right prevents you from accidentally under-receiving Robux on your sales.
What is the minimum Robux required for DevEx?
The minimum cashout amount for DevEx is 30,000 Robux, which at the current rate ($0.0038) equals $114 USD. You also need to be a Roblox Premium member and meet Roblox's developer verification requirements.
Not a Developer? Earn Robux for Free
Can't cash out via DevEx? LootBusters lets regular players earn points by completing simple tasks, then redeem for Roblox gift cards, which convert directly to Robux.
Start Earning Free Robux on LootBusters →