How much is 400 Robux?
400 Robux costs about $5.00 to buy on Roblox. 400 Robux is one of Roblox’s six official packages, so this is a price you can pay exactly — no leftovers, no topping up.
Estimates based on standard Roblox pricing. Actual price varies by package, platform and region.
How to buy 400 Robux on Roblox
Roblox sells this one exactly. A single package, $4.99, nothing left over.
- That works out at $0.0125 per Robux.
- With a Roblox Premium membership the same $4.99 delivers 440 Robux instead, thanks to the 10% purchase bonus.
The $4.99 tier, explained
400 Robux is the second-smallest package Roblox sells and the first one most people actually buy. Because it is an exact package there is no arithmetic to do: one purchase, one price, 400 Robux in the account.
Premium beats it, if you buy regularly
This is the one tier where the comparison is genuinely close. Roblox Premium costs the same $4.99 a month and includes a 450 Robux stipend — 50 more than the package — plus a 10% bonus on anything you buy on top, and the right to trade and sell limited items. Buying the 400 pack once is fine. Buying it every month is paying more for less.
The catch is that Premium is a subscription: it keeps charging, and the stipend only lands while you are subscribed. The package is a one-off.
What 400 Robux gets you
This is the tier where gamepasses become realistic. Plenty of popular experiences sell passes — extra lives, a pet, a vehicle, a starter boost — inside this range, and it is comfortably enough for several Marketplace accessories at once.
Prices are set by creators, not by Roblox, so there is no fixed list. What is fixed is the split behind them: Roblox keeps 30% of every gamepass sale, which is why creators rarely price things very low.
Where it sits on the value curve
Per Robux, the 400 pack is near the bottom of the six. Stepping up to 800 Robux costs about the same per Robux, but 4,500 and 10,000 are meaningfully cheaper per unit. The table above shows the exact figure for this amount; the calculator hub shows all six tiers side by side.
Earning 400 Robux instead
400 Robux is a realistic target on a rewards site — a few offers rather than a card payment. That is the whole idea behind Buxy: advertisers pay for completed offers and you get paid in Robux. If you are wondering whether that is legitimate, the honest answer is in how Robux payouts work.
Frequently asked questions
- How much does 400 Robux cost?
- $4.99 on roblox.com. It is one of the six standard web packages, so you buy it in a single transaction with nothing left over.
- Is the 400 Robux package good value?
- It is close to the worst value of the six. The per-Robux price at this tier is roughly a quarter higher than at the 10,000 Robux package. It is the right size if 400 Robux is genuinely what you need, not if you plan to keep buying.
- Is Premium better than buying 400 Robux?
- For $4.99 a month Roblox Premium gives 450 Robux plus a 10% bonus on purchases and the ability to trade. If you buy Robux every month at this level, Premium delivers more Robux for the same money.