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

ETH to BTC ratio: today and its recorded high

As of Sep 13, 2026, Ethereum (ETH) trades at 0.0325 ETH/BTC against BTC. Its highest recorded ratio was 0.113 ETH/BTC, set in Feb 2018. At that ratio, with BTC at today's $77,320, one ETH would be worth $8,732, a 3.47x move from $2,514.

Based on available daily closes since Aug 17, 2017. Earlier peaks may be missing.

ETH currently sits 71% below its peak BTC ratio.

MetricValue
ETH/BTC today0.0325 ETH/BTC
Peak ETH/BTC0.113 ETH/BTC
Peak reachedFebruary 1, 2018
Below peak71%
ETH at peak ratio$8,732 (3.47×)
BTC price used$77,320

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 ETH to BTC ratio today?
0.0325 ETH/BTC, as of Sep 13, 2026.
What is the highest ETH to BTC ratio in the available data?
0.113 ETH/BTC, reached in February 1, 2018, measured on daily closes.
What would ETH be worth at its peak BTC ratio?
$8,732, a 3.47x move from $2,514, assuming BTC stays at $77,320.

Data: CoinGecko, refreshed daily. Last update Sep 13, 2026.