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What does 400 Robux cost to buy?
On October 8, 2026, Roblox’s U.S. Buy Robux page displayed a $4.99 offer with the amounts 500 and 400 paired. The U.S. Xbox / Microsoft Store listing separately showed 400 Robux for $4.99. Those are specific U.S. listings, not proof of one universal 400-Robux price: package amounts and prices can vary by region, platform, and offer.
Check the purchase screen for the platform and region you plan to use. Treat the amount and price shown there as the applicable offer rather than assuming a web, mobile, or console listing will match another.
Can you turn 400 Robux into cash?
Not if the Robux were bought. Roblox excludes directly purchased Robux, monthly subscription grants, and gift-card redemptions from “Earned Robux,” the balance eligible for its Developer Exchange (DevEx) program. Roblox Credit from a redeemed gift card can be used to buy Robux on the website, but that does not make those Robux cashable; see Roblox Support’s explanation of Roblox Credit and the DevEx eligibility rules.
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- Redemption: Online only. Robux cards can only be redeemed in a browser at Roblox.com/redeem. They cannot be redeemed in the Roblox mobile app or any video game console.
- Roblox is an immersive platform for connection and communication. Every day, millions of people come to Roblox to create, play, work, learn, and connect with each other in experiences built by our global community of creators.
- Get more with every Roblox Gift Card! From now on, when you redeem a Roblox gift card, you get up to 25% more Robux. Perfect for gaming, creating, and exploring- more Robux means more possibilities!
- Deck out your avatar and unlock additional perks in your favorite experiences when you use Roblox Gift Cards to purchase Robux (Roblox's virtual currency).
- Each gift card grants a free virtual item upon redemption.
For eligible creator-earned Robux, Roblox’s standard DevEx rate is $0.0038 per Earned Robux. At that rate, 400 × $0.0038 = $1.52. This is a calculation, not a cash value for a purchased Robux balance and not a standalone payout: the DevEx minimum is 30,000 Earned Robux, which Roblox says equals $114 at the standard rate. The program has other requirements, and Roblox notes that the balance display is an estimate, not a guarantee of eligibility or payment. See the Developer Exchange Program documentation.
Which DevEx rate applies?
The $1.52 illustration uses Roblox’s standard rate. Other rates apply only to specific eligible earnings:
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![Roblox Digital Gift Card - 1,000 Robux [Includes Exclusive Virtual Item] [Digital Code]](https://m.media-amazon.com/images/I/419axeltOqL._SL160_.jpg)
- The easiest way to add Robux (Roblox’s digital currency) to your account. Use Robux to deck out your avatar and unlock additional perks in your favorite Roblox experiences.
- This is a digital gift card that can only be redeemed for Robux at Roblox.com/redeem. It cannot be redeemed in the Roblox mobile app or any video game console. Please allow up to 5 minutes for your balance to be updated after redeeming.
- Roblox Gift Cards can be redeemed worldwide, perfect for gifting to Roblox fans anywhere in the world.
- From now on, when you redeem a Roblox Gift Card, you get up to 25% more Robux. Perfect for gaming, creating, and exploring- more Robux means more possibilities!
- Every Roblox Gift Card grants a free virtual item upon redemption.
- Standard rate: $0.0038 per Earned Robux. Roblox’s current DevEx documentation gives this as the standard rate.
- U.S. 18+ rate: $0.0054 per qualifying Earned Robux. Effective June 8, 2026, this rate applies only to specified eligible earnings in eligible games tied to qualifying purchases by U.S. players aged 18 or older. At that rate, 400 qualifying Earned Robux would calculate to $2.16, still below the 30,000-Earned-Robux minimum. Details are in Roblox’s U.S. 18+ rate documentation.
- Old-rate balances: $0.0035 per applicable Earned Robux. This applies to eligible balances earned before September 5, 2025 at 10 a.m. Pacific, until those balances are cleared, according to Roblox’s rate-transition documentation.
These rates concern eligible creator earnings, not the price paid by a player to buy Robux.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Buying price and creator cash-out are different
The purchase price is what a player pays for a platform-specific Robux offer. DevEx is a conditional exchange for eligible creator earnings, with eligibility rules, a minimum balance, and rates that depend on the type and timing of earnings. So the concise answer is: 400 Robux costs $4.99 in the cited U.S. Xbox listing, while the cited Roblox U.S. web page pairs 400 with 500 at $4.99; 400 purchased Robux have no DevEx cash-out value, and 400 standard-rate eligible Earned Robux calculate to $1.52 but cannot be cashed out by themselves.
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![Roblox Digital Gift Card - 5,250 Robux [Includes Exclusive Virtual Item] [Digital Code]](https://m.media-amazon.com/images/I/41TsWfyqleL._SL160_.jpg)
- The easiest way to add Robux (Roblox’s digital currency) to your account. Use Robux to deck out your avatar and unlock additional perks in your favorite Roblox experiences.
- This is a digital gift card that can only be redeemed for Robux at Roblox.com/redeem. It cannot be redeemed in the Roblox mobile app or any video game console. Please allow up to 5 minutes for your balance to be updated after redeeming.
- Roblox Gift Cards can be redeemed worldwide, perfect for gifting to Roblox fans anywhere in the world.
- From now on, when you redeem a Roblox Gift Card, you get up to 25% more Robux. Perfect for gaming, creating, and exploring- more Robux means more possibilities!
- Every Roblox Gift Card grants a free virtual item upon redemption.
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![Roblox Digital Gift Card - 2,000 Robux [Includes Exclusive Virtual Item] [Digital Code]](https://m.media-amazon.com/images/I/41HFZ1Pdg2L._SL160_.jpg)
- The easiest way to add Robux (Roblox’s digital currency) to your account. Use Robux to deck out your avatar and unlock additional perks in your favorite Roblox experiences.
- This is a digital gift card that can only be redeemed for Robux at Roblox.com/redeem. It cannot be redeemed in the Roblox mobile app or any video game console. Please allow up to 5 minutes for your balance to be updated after redeeming.
- Roblox Gift Cards can be redeemed worldwide, perfect for gifting to Roblox fans anywhere in the world.
- From now on, when you redeem a Roblox Gift Card, you get up to 25% more Robux. Perfect for gaming, creating, and exploring- more Robux means more possibilities!
- Every Roblox Gift Card grants a free virtual item upon redemption.
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![Roblox Digital Gift Card - 2,500 Robux [Includes Exclusive Virtual Item] [Digital Code]](https://m.media-amazon.com/images/I/41p8GJ7ZLdL._SL160_.jpg)
- The easiest way to add Robux (Roblox’s digital currency) to your account. Use Robux to deck out your avatar and unlock additional perks in your favorite Roblox experiences.
- This is a digital gift card that can only be redeemed for Robux at Roblox.com/redeem. It cannot be redeemed in the Roblox mobile app or any video game console. Please allow up to 5 minutes for your balance to be updated after redeeming.
- Roblox Gift Cards can be redeemed worldwide, perfect for gifting to Roblox fans anywhere in the world.
- From now on, when you redeem a Roblox Gift Card, you get up to 25% more Robux. Perfect for gaming, creating, and exploring- more Robux means more possibilities!
- Every Roblox Gift Card grants a free virtual item upon redemption.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
