Robux Purchase Planner
Enter your Robux target and instantly see the cheapest package combination to reach it.
Cheapest way to reach your target
- 2 × 500 Robux ($4.99 each)
Fewer purchases — $9.99 · 1 purchase
- 1 × 1,000 Robux ($9.99)
Save $0.01 with 2 purchases instead.
Showing web / gift-card values
Prices are current USD reference prices and may vary by region. Combining packages sometimes costs less than a single larger package.
Data source: Roblox Buy Robux page · Last verified: October 9, 2026
Or earn Robux for free
CashBlox lets you earn Robux by playing games, completing offers, and answering surveys — no credit card needed.
How the purchase planner works
Roblox sells Robux in fixed packages. Because prices don't always scale linearly, combining packages can sometimes be cheaper than buying one large package. The planner uses an unbounded knapsack algorithm to find the minimum-cost combination of packages that meets or exceeds your target.
Why packages don't always scale linearly
For example, one 2,000-Robux package might cost $19.99, but two 1,000-Robux packages at $9.99 each total $19.98 — one cent cheaper for the same amount. The planner catches these savings automatically.
Web vs. other values
Roblox shows two Robux amounts for most packages — the higher amount when purchasing via roblox.com or a gift card, and a lower amount for other contexts. The planner lets you choose which column to optimise against.
Frequently asked questions
Why does buying two packages sometimes cost less than one large package?
Robux prices don't always scale linearly. For example, two $9.99 packages give 2,000 Robux, while a $19.99 package gives 2,000 Robux — the same amount for $0.01 less. The planner uses dynamic programming to find the cheapest combination for any target.
What is the difference between 'web' and 'other' values?
The web / gift-card value is the amount you get when purchasing Robux directly on roblox.com or redeeming a Roblox gift card. The 'Other' column shows a lower reference amount. The web value is typically higher because Roblox passes on a bonus for direct purchases.
Does the planner account for Roblox Plus discounts?
No — the planner shows standard package prices. Roblox Plus members may receive discounts on some in-experience purchases, but Robux package prices themselves are fixed.
Why are prices shown in USD?
Roblox publishes US dollar reference prices. Roblox uses 'economic location' (not simply your IP or account country) to determine regional pricing. Actual prices in your region may differ.
What if I want the fewest trips to the Robux store?
The planner shows a 'Fewer purchases' alternative when a different combination achieves the same target in fewer transactions — even if it costs a bit more.
Related tools
Gift Card Calculator — See how many Robux a Roblox gift card is worth.
Robux Goal Tracker — Track your progress toward a Robux goal with a live progress bar.
Robux package prices verified from the Roblox Buy Robux page. Prices are USD reference prices and may vary by region. Last verified: October 2026.