Introduction
This Robux calculator shows you three things fast: how much Robux your money buys, how much real cash your Robux is worth through DevEx, and how much you keep after the 30% Marketplace fee.
Type a dollar, euro, or pound amount and the tool matches it to the closest official Roblox package. You can pick Web or Gift Cards, or other platforms like mobile, Xbox, and PlayStation, which give fewer Robux for the same price. Purchases on the web, on a computer and with gift cards receive up to 25% more Robux.5
Sellers and game creators can use the DevEx tab to see cash payouts at Roblox's standard rate of $0.0038 per Earned Robux or one of its other DevEx rates, plus a warning if you are under the 30,000 Robux minimum.3 The Marketplace Tax tab works both ways: enter a listing price to see your payout, or enter the payout you want to see what price to list.
Every answer comes with a step-by-step solution, a chart, and a table of official Robux prices, so you can see exactly how the math works before you spend or cash out.
How to use our Robux Calculator
Pick a tab, type in your money or Robux amount, and the calculator shows how many Robux you get, what a DevEx cashout pays, or how much Roblox takes from a sale. It also shows the math step by step, plus charts and the official Robux package prices.
Display Currency: Choose USD, EUR, or GBP. This changes the money shown on every tab. Euro and pound amounts use the latest daily exchange rate, and its date is shown under the menu.
Conversion Direction (Buy Robux tab): Pick "Money → Robux" to see how many Robux your cash buys. Pick "Robux → Money" to see what your Robux are worth. The swap button flips it fast.
Purchase Platform: Choose "Web / Gift Cards" if you buy on the Roblox website. Choose "Other Platforms" for mobile, Xbox, or PlayStation, which give fewer Robux for the same price.
Amount to Spend: Type how much money you want to spend. The tool snaps to the closest real Roblox package and tells you if it changed your number. Remember that store checkout may add tax. The Sales Tax Calculator shows what you actually pay.
Robux Amount: Type how many Robux you have. The tool shows what they cost to buy and what they are worth through DevEx.
Official Robux Packages table: Click any row (or press Enter on it) to load that package price into the calculator.
Robux to Exchange (DevEx tab): Type the whole number of Robux you want to cash out. You get your payout in real money, plus a warning if you are under the 30,000 Robux minimum.
DevEx Rate (DevEx tab): Pick the rate your Robux cash out at. The standard rate is $0.0038 per Robux.1 Robux earned before 10 AM PT on September 5, 2025 cash out at the old rate of $0.0035.1 A higher rate of $0.0054 per Robux applies to eligible spending by players in the United States who are over 18, effective June 8, 2026.1
Calculation Direction (Marketplace Tax tab): Pick "Listing → Payout" to see what you keep after the 30% fee. Pick "Payout → Listing" to see what price to set to hit the payout you want.
Listing Price (Robux): Type the price buyers pay for your item. The tool shows the fee and your net Robux.
Desired Payout (Robux): Type the Robux you want to keep. The tool shows the listing price you need to set.
Calculate and Reset: Results update as you type, but you can press Calculate any time. Reset puts that tab back to its starting values.
What Is Robux?
Robux (R$) is the money used inside Roblox. Players buy Robux with real cash, then spend it on game passes, avatar items, and other in-game extras. Creators earn Robux when people buy the things they make.
How Much Robux Costs
Roblox sells Robux in set packages. On the Roblox website and with gift cards, $9.99 gets you 1,000 Robux.4 That works out to about $0.01 per Robux. You cannot pick any dollar amount you want, since you must buy one of the packages.
Why the Platform Matters
You get fewer Robux when you buy inside the mobile app, on Xbox, or on PlayStation. Buying on the web, on a computer or with a gift card gives up to 25% more Robux.5 For example, $9.99 buys 1,000 Robux on the web, where it used to buy 800 Robux, and the higher amount is not offered in the mobile and console apps.4
Premium and Roblox Plus
Roblox Premium used to add 10% more Robux to purchases, but that bonus ended on May 30, 2026, and Premium can no longer be bought.6 Roblox Plus replaced it on April 30, 2026.7 Roblox Plus gives a 10% discount on in-game items and avatar items, rising to 20% from the third month in a row, and has no monthly Robux stipend.7
The 30% Marketplace Fee
When someone buys your pass in your own game, you receive 70% of the Robux spent and the remaining 30% is Roblox's Marketplace Fee.8 If you sell a pass for 1,000 Robux, you get 700 Robux. To end up with a certain amount, divide your goal by 0.70. For example, if you want 700 Robux, set the price at 1,000 Robux. Avatar items sold in the Marketplace pay their creator less: 30% at the price floor, rising to 70% for items priced six or more times above it.9 Donation games now use Robux transfers instead, where the game earns 10% and the recipient receives 90%, as the Pls Donate Calculator shows.10
DevEx: Turning Robux Into Real Money
The Developer Exchange program (DevEx) lets creators cash out earned Robux for real money. The standard rate is $0.0038 per Earned Robux.1 That is $3,800 for 1,000,000 Robux. You need at least 30,000 Earned Robux to make a DevEx request, plus a Roblox-verified email address, and you must be at least 13 years old.2 For tax purposes, Roblox considers DevEx payments to be payments for services you provided, so the Self Employment Tax Calculator is worth a look before you plan your payout.2
Buy Rate vs. DevEx Rate
These two rates are not the same, and that surprises a lot of people. Robux costs about $0.01 each to buy on the web but pays out $0.0038 each through DevEx at the standard rate, or about 38% of the buy price. Roblox keeps the difference. It also means you cannot "cash out" Robux you bought, because a direct Robux purchase is not Earned Robux.3
Quick Numbers to Remember
- 1,000 Robux costs $9.99 on web.4
- 1,000 Robux pays $3.80 through DevEx at the standard rate.
- Creators keep 70% of pass sales in their own game.8
- The DevEx minimum is 30,000 Earned Robux, worth $114.1
- Web, computer and gift card purchases get up to 25% more Robux than the apps.5
Prices and rates come from Roblox and can change. Currency amounts other than USD are converted from US dollars at the latest daily exchange rate.