Robux Quiz

Free tool · Robux to USD

Robux Calculator: Robux to USD, USD to Robux, Tax and DevEx

Type an amount and every answer updates as you go: what Robux cost to buy, what a sale leaves you after Roblox's fee, and what DevEx pays creators.

Robux to USD

Buying on roblox.com
≈ $10.00
Buying in the mobile app
≈ $12.50
Cashing out with DevEx
$3.80
DevEx, Robux earned before Sept 2025
$3.50

USD to Robux

Buying on roblox.com
≈ 1,000
Buying in the mobile app
≈ 800

Robux tax (30% fee)

You receive after the 30% fee
70
Set your price to
1,429

Prices checked:

Robux to USD at a glance

What common Robux amounts cost to buy, and what DevEx pays for the same amount earned.
RobuxBuying on roblox.comBuying in the mobile appCashing out with DevEx
100≈ $1.00≈ $1.25$0.38
400≈ $4.00≈ $5.00$1.52
800≈ $8.00≈ $10.00$3.04
1,000≈ $10.00≈ $12.50$3.80
1,700≈ $17.00≈ $21.25$6.46
2,000≈ $20.00≈ $25.00$7.60
4,500≈ $45.00≈ $56.25$17.10
10,000≈ $100.00≈ $125.00$38.00
30,000≈ $300.00≈ $375.00$114.00
100,000≈ $1,000.00≈ $1,250.00$380.00

How much is 1 Robux worth?

It depends on which way the Robux are going. Buying them, 1 Robux costs about 1 cent on roblox.com, so $1 gets you about 100 Robux. Cashing earned Robux out through the Developer Exchange (DevEx), 1 Robux is worth $0.0038, so 1,000 earned Robux pay out $3.80.

That gap is normal: Roblox sells Robux at one price and buys them back from creators at a lower one, the same way any exchange has a buying and a selling rate.

Robux prices: website or app?

Where you buy changes how many Robux you get. In the United States, roblox.com sells 1,000 Robux for $9.99, while the same $9.99 buys 800 Robux in the iOS and Android apps, because app stores take a cut. Gift cards follow the website's prices.

  • Website: about 100 Robux per dollar.
  • Mobile app: about 80 Robux per dollar.
  • Prices differ by country and currency, and Roblox changes them from time to time. Check the price on Roblox before you pay.

How the Robux tax works

When you sell a game pass or a developer product, Roblox keeps 30% and you receive 70%. Players call this the Robux tax. Sell a game pass for 100 Robux and you get 70.

To receive an exact amount, divide it by 0.7 and round up. To get 1,000 Robux, set the price to 1,429. The calculator does this for you. Some avatar item sales are split differently, so check Roblox's Creator Hub for those.

DevEx: turning earned Robux into money

The Developer Exchange lets creators swap Robux they earned (from game passes, items and other sales, not Robux they bought) for real money. The standard rate is $0.0038 per Robux for Robux earned after 5 September 2025, and $0.0035 for Robux earned before that.

  • You need at least 30,000 earned Robux to cash out, which is about $114.
  • Roblox has its own eligibility rules, including a minimum age and an account in good standing. Read them on Roblox's DevEx page before you apply.

No calculator can make free Robux

A calculator only does arithmetic. Any site that asks for your username or password to "send" Robux after a calculation is a scam. Robux only come from Roblox, from buying them, or from people paying you through Roblox's own systems. Here is why Robux generators never work, and every real way to earn Robux.

Robux on Robux Quiz

On Robux Quiz you earn coins by answering Roblox quiz questions, and 10 coins are worth 1 Robux. Link and verify your Roblox account and you can ask for a payout from 100 Robux (1,000 coins), and a person reviews every request. Read exactly how it works, or play a quiz and start collecting.

More free Roblox tools

Frequently asked questions

How much is 1 Robux in dollars?

Buying, about $0.01 on roblox.com (1,000 Robux for $9.99) and about $0.0125 in the mobile app. Cashing out earned Robux with DevEx, $0.0038 each.

How many Robux do you get for $10?

About 1,000 Robux on roblox.com or with a gift card, and 800 Robux in the iOS or Android app, in the United States.

What is the Robux tax?

Roblox keeps 30% of game pass and developer product sales, so the seller receives 70%. Sell something for 100 Robux and you get 70.

How much is 10,000 Robux worth?

About $100 to buy on roblox.com. If you earned them and cash out with DevEx, 10,000 Robux pay $38, though DevEx needs at least 30,000 earned Robux.

Can a Robux calculator give me free Robux?

No. A calculator only converts numbers. Sites that ask for your login after a calculation are trying to steal your account.

Robux Quiz is a free, fan-made game. It is not affiliated with, endorsed by or sponsored by Roblox Corporation. Roblox and Robux are trademarks of Roblox Corporation.