Know your Robux before you spend it.
Free Roblox calculators for tax, DevEx, packs and trades. No login. Ever.
Left after 30% fee700
DevEx cash value$3.80
Cost to buy at store$12.48
Fee 30%DevEx $0.0038Minimum 30,000400 Robux $4.99Checked November 2026
What are you here to do?
Pick your situation and get the right tool.
Robux Tax CalculatorWhat you keep after the 30% fee, or what price to chargeDevEx CalculatorEarned Robux to cash at all three DevEx ratesGame Pass Profit CalculatorNet earnings from a pass or product, per day and monthGroup Payout SplitterSplit a Robux pool in whole-Robux sharesCustom Fee CalculatorAny fee percentage, forward and backwardAd Spend Break-Even CalculatorSales needed to earn back your ad spend
Robux to USD ConverterRobux to dollars at store price or DevEx rateUSD to Robux ConverterHow many Robux a dollar budget buysRobux Price CalculatorCost per Robux for every pack, rankedRobux Goal CalculatorCheapest pack mix to reach a Robux targetSubscription Break-Even CalculatorDoes your monthly plan pay for itself?Robux per Dollar ComparisonEvery pack ranked by value
Limited Resale Fee CalculatorProfit and break-even when you resell an itemLimiteds Trade CheckerCompare both sides of a trade, get a verdict
Roblox Account Value CalculatorRough account worth from RAP, Robux and ageRoblox Account Age CheckerExact age from your join dateRoblox Game ID FinderPaste a game link, get the place IDRoblox Asset ID FinderPull the ID from a catalog or asset linkRoblox Username GeneratorFresh username ideas by style
Every tool
Calculators that explain themselves.
Robux Tax CalculatorWhat you keep after the 30% fee, or what price to charge→DevEx CalculatorEarned Robux to cash at all three DevEx rates→Robux to USD ConverterRobux to dollars at store price or DevEx rate→USD to Robux ConverterHow many Robux a dollar budget buys→Robux Price CalculatorCost per Robux for every pack, ranked→Robux Goal CalculatorCheapest pack mix to reach a Robux target→Game Pass Profit CalculatorNet earnings from a pass or product, per day and month→Group Payout SplitterSplit a Robux pool in whole-Robux shares→Limited Resale Fee CalculatorProfit and break-even when you resell an item→Custom Fee CalculatorAny fee percentage, forward and backward→Ad Spend Break-Even CalculatorSales needed to earn back your ad spend→Subscription Break-Even CalculatorDoes your monthly plan pay for itself?→Roblox Account Value CalculatorRough account worth from RAP, Robux and age→Roblox Account Age CheckerExact age from your join date→Limiteds Trade CheckerCompare both sides of a trade, get a verdict→Roblox Game ID FinderPaste a game link, get the place ID→Roblox Asset ID FinderPull the ID from a catalog or asset link→Roblox Username GeneratorFresh username ideas by style→Robux per Dollar ComparisonEvery pack ranked by value→
The numbers people look up most
Bookmark this table.
| Thing | Number |
|---|---|
| Marketplace fee | 30% |
| You keep | 70% (rounded down) |
| DevEx standard rate | $0.0038 per Earned Robux |
| DevEx legacy rate | $0.0035 |
| DevEx US 18+ rate (eligible) | $0.0054 |
| DevEx minimum | 30,000 Earned Robux ($114) |
| Base pack | 400 Robux for $4.99 |
| Price to receive X | X divided by 0.7, rounded up |
No login. No Robux generator. Everything runs in your browser.
Guides
Plain-language answers.
How Roblox Tax Works: The 30% Marketplace Fee ExplainedRoblox keeps 30% of marketplace sales. Learn what it covers, how rounding works and how to price around it.Roblox DevEx Requirements: What You Need to Cash OutThe main DevEx requirements in plain language, with the current rates and what counts as Earned Robux.What Is Earned Robux? What Counts and What Does NotEarned Robux is what you make by creating value on Roblox. Here is what qualifies for DevEx and what is excluded.How to Reach 30,000 Earned Robux for Your First DevExA realistic breakdown of what it takes to reach the DevEx minimum with passes, products and UGC.What Is RAP in Roblox? Recent Average Price ExplainedRAP tracks the average sale price of a limited item. Learn how it works and where it misleads.Best Value Robux Pack: Which One Should You Buy?Compare every standard Robux pack by Robux per dollar and learn when a bigger pack is not worth it.