3 browser-based tools
Roblox
Straightforward local helpers for Robux math and Roblox identifiers.
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Roblox
Robux Percentage Calculator
Calculate any percentage of a Robux amount with transparent arithmetic.
RobloxRoblox Marketplace Fee Calculator
Estimate proceeds or listing price using a fee percentage you can set.
RobloxRoblox Asset ID Extractor
Extract numeric asset, catalog, game, or library IDs from Roblox URLs and text.
Designed for quick, reliable answers
These tools put the useful part first. Each page explains the calculation or transformation it performs, includes practical examples, and links to closely related utilities.
No account is required, and these utilities work entirely in your browser.