How it works

Two ways to ask “what if”. Here’s an example with ETH and BTC.

Market cap

What if ETH had BTC's market cap?

We give ETH the same market cap as BTC, then divide by the supply used for ETH. NOW uses the current market cap of BTC; ATH uses its historical high.

Peak ratio

What if ETH hit its peak BTC ratio?

We find the highest recorded ETH/BTC price ratio in our available daily history, then apply it to the price of BTC today. This shows what one ETH would cost if it regained that relative strength.

Use the question below your result to flip between the two modes.

What if A had B's market cap?

Select A
Select B
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ADA to ETH ratio: today and its recorded high

As of Sep 17, 2026, Cardano (ADA) trades at 0.0000824 ADA/ETH against ETH. Its highest recorded ratio was 0.000925 ADA/ETH, set in Feb 2021. At that ratio, with ETH at today's $2,452, one ADA would be worth $2.27, a 11.22x move from $0.2022.

Based on available daily closes since Apr 17, 2018. Earlier peaks may be missing.

ADA currently sits 91% below its peak ETH ratio.

MetricValue
ADA/ETH today0.0000824 ADA/ETH
Peak ADA/ETH0.000925 ADA/ETH
Peak reachedFebruary 28, 2021
Below peak91%
ADA at peak ratio$2.27 (11.22×)
ETH price used$2,452

These are price ratios measured on daily closes, not market cap ratios. The two differ whenever the circulating supplies of the two coins have grown at different rates.

Questions

What is the ADA to ETH ratio today?
0.0000824 ADA/ETH, as of Sep 17, 2026.
What is the highest ADA to ETH ratio in the available data?
0.000925 ADA/ETH, reached in February 28, 2021, measured on daily closes.
What would ADA be worth at its peak ETH ratio?
$2.27, a 11.22x move from $0.2022, assuming ETH stays at $2,452.

Data provided by CoinGecko. Refreshed daily. Last update Sep 17, 2026.