CARTON · Robux · USD/EUR

Simulated signal

Latest calculated index

Real currency Euro

Fictional currency Robux

1 EUR

Robux

1 Robux EUR 0.0086

Unofficial entertainment index. It is not a tradable exchange rate.

Cardboard Index · EUR / Robux

How much is one euro worth in Robux?

Based on data updated on September 4, 2026, one euro is worth approximately 116.4128 Robux.

The calculation uses 500 Robux, its reference price in US dollars, and the exchange rate published by Federal Reserve · FRED.

View official price

Historical series

The index in motion.

Choose a range: 1M, 3M and 1Y show daily values; 3Y summarizes each month.

The history contains 247 observations. The index moved from 107.1092 Robux to 116.4128 Robux per EUR, with a low of 103.8978 and a high of 120.0401.

At a glance

Previous value 116.2124 Robux per EUR

7-day change +0.17 % Federal Reserve · FRED series

30-day change +0.86 % Federal Reserve · FRED series

Period low 103.8978 Robux per EUR

Period high 120.0401 Robux per EUR

How it works

One dollar price.
The Federal Reserve · FRED exchange rate.

We convert US$4.99 to EUR using Federal Reserve · FRED, then divide 500 Robux by the result.

Robux per EUR

500 Robux US$ 4.99 × EUR 0.8607

current index · 116.4128

500 Robux ÷ (US$ 4.99 × 0.8607 EUR/US$) = 116.4128 Robux per EUR.

SOURCE

Fictional supply: 500 Robux
Reference product: Standard web package · 500 Robux
US web price: US$ 4.99
Federal Reserve · FRED · EUR per US$1: 0.8607
Price in EUR: EUR 4.30

Limitations

The package price is a reference and may change by region, platform, and tax.

The Federal Reserve · FRED reference exchange rate may not match the price available to retail customers.

The package excludes subscriptions, promotions, and gift cards. The result is an entertainment index, not a resale price or financial valuation.

Traceability

Two inputs, in plain sight.

In this historical snapshot, the package price remains fixed. Only the official Federal Reserve · FRED exchange-rate series changes over time.

Sources for the latest calculation
Source / input	Value	Date	Use
Roblox · Robux Standard US web package · 500 Robux	US$ 4.99	Jul 24, 2026	IncludedFixed price
Board of Governors of the Federal Reserve System U.S. Dollar to Euro · DEXUSEU	EUR 0.8607 / US$ 1	Sep 04, 2026	IncludedHistory · 3 years

About the project

Real data.
Fake money.

cartonindex turns an absurd question into a serious exercise in methodology, traceability and visualization.

Both language versions use the same underlying data series, so changing language does not change the calculation.