Bitcoin vs Cardano
Bitcoin (BTC) ranks #1 by market capitalization at $1.68T and Cardano (ADA) ranks #19 at $9.5B, as of October 12, 2026. Bitcoin has a fixed maximum supply of 21.0M BTC; Cardano has a fixed maximum supply of 45.0B ADA. Bitcoin is available on 36 exchanges we have verified and Cardano on 26; 26 list both.
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Side-by-Side
 Bitcoin |  Cardano | |
|---|---|---|
| Market cap rank | #1 | #19 |
| Price | $83,810 | $0.253 |
| Market cap | $1.68T | $9.5B |
| Fully diluted valuation | $1.68T | $11.4B |
| 24-hour volume | $18.5B | $386.6M |
| Circulating supply | 20.1M BTC | 37.6B ADA |
| Maximum supply | 21.0M BTC | 45.0B ADA |
| All-time high | $126,080 (October 6, 2025) | $3.09 (September 1, 2021) |
| Change from all-time high | −33.5% | −91.8% |
| 7-day change | −1.9% | −4.9% |
| 30-day change | +8.7% | +22.1% |
| Category | layer-1 | layer-1 |
| Chains | the Bitcoin network | the Cardano network |
| Launched | 2009 | — |
Where You Can Buy Each
| Bitcoin | Cardano | |
|---|---|---|
| Exchanges listing it | 36 | 26 |
| Countries and US states with a ranked buy page | 70 | 70 |
26 exchanges list both; 70 locations have a ranked buy page for both.
Frequently Asked Questions
- Which has the larger market cap, Bitcoin or Cardano?
- Bitcoin, by about 177.2× as of October 12, 2026: $1.68T for Bitcoin against $9.5B for Cardano.
- Does Bitcoin or Cardano have a fixed supply?
- Both do. Bitcoin is capped at 21.0M BTC and Cardano at 45.0B ADA.
- Where can I buy both Bitcoin and Cardano?
- 26 exchanges we have verified list both. Pick your location on the buy pages to see which serve you and what a $500 purchase costs.