Bitcoin vs Ethereum for Traders: Supply, Block Times, Fees and Deposits
Bitcoin and ether sit side by side on every exchange, and the buy button looks the same for both. Underneath, they work differently in ways that affect traders: how new coins are issued, how fast blocks arrive, how network fees are calculated and how long a deposit takes to be credited. This guide compares bitcoin and Ethereum on those points, using the projects' own documentation, and explains what each difference means when you buy, sell, deposit or withdraw on an exchange. It's educational and contains no price predictions.
Educational content, not financial advice. Bitcoin and ether can both fall sharply, and exchange features and fees vary by platform and country.
Supply: a fixed cap versus issuance minus burn
Bitcoin has a known supply schedule. The bitcoin.org FAQ says the number of new bitcoins created each year "is automatically halved over time until bitcoin issuance halts completely with a total of 21 million bitcoins in existence". The Bitcoin developer reference gives the mechanism: the block subsidy "started at 50 bitcoins and is being halved every 210,000 blocks—approximately once every four years". Because block heights are public, the approximate date of each halving is known well in advance.
Ethereum has no fixed maximum supply. ethereum.org breaks ETH supply into two forces: issuance, the new ETH paid to validators for proposing and attesting to blocks, and burn. Every transaction must pay a minimum "base fee", and that base fee is destroyed rather than paid to anyone. When the network is busy, more ETH is burned. Net supply can grow or shrink depending on activity, so there's no halving calendar to point to.
What this means for a trader: bitcoin's issuance events are scheduled and widely discussed ahead of time, while ether's net issuance changes with network use. Neither tells you where the price will go. Both are public facts you can check yourself instead of relying on social media claims.
Block times and why deposits take different amounts of time
Bitcoin blocks arrive about every ten minutes on average, but not on a fixed clock. The developer guide explains that every 2,016 blocks the network compares how long they actually took with the ideal of 1,209,600 seconds (two weeks), and adjusts the mining difficulty. Individual blocks can come seconds or much longer than ten minutes apart.
Ethereum runs on fixed slots. ethereum.org says that in every slot, "spaced twelve seconds apart", a validator is randomly selected to propose a block.
Exchanges credit a deposit after a number of confirmations they choose for each network. A bitcoin deposit usually needs more wall-clock time to reach the exchange's threshold than an ETH deposit on Ethereum mainnet. The deposit screen normally shows the required confirmations. If a BTC deposit shows as pending for a while, that's often just block timing, not a lost transfer; our guide on crypto not showing in a wallet covers the checks.
How network fees are calculated
The two networks price fees in different units, which is why fee estimates for the same dollar amount can look very different.
- Bitcoin: the developer guide says transactions "pay fees based on the total byte size of the signed transaction", with the fee per byte rising as demand for block space rises. A transaction that spends many small earlier payments (many inputs) is larger and costs more, even if the amount sent is small.
- Ethereum: the fee is the gas a transaction uses multiplied by the gas price, which is the base fee plus an optional priority fee (tip). A plain ETH transfer uses less gas than a token transfer or a smart-contract interaction.
On an exchange you don't pay these fees directly when you trade between bitcoin and ether, because trades happen on the exchange's own ledger. You meet them when you deposit from your wallet (you pay the network fee) and when you withdraw (the exchange charges a withdrawal fee, usually fixed per network). Our explainer on crypto network fees and gas goes through each case.
Addresses, networks and wrapped versions
Bitcoin addresses come in several formats (starting with 1, 3 or bc1), and an exchange's BTC deposit screen tells you which it accepts. Ethereum addresses are always 0x followed by 40 hexadecimal characters, and the same address works on Ethereum mainnet and on layer-2 networks. With ETH, choosing the right network on both screens matters as much as the address itself; that's covered step by step in trading Ethereum on exchanges: networks, gas and WETH.
Some platforms also list wrapped bitcoin tokens on Ethereum. These are ERC-20 tokens that track BTC through a custodian or bridge. They aren't bitcoin on the Bitcoin network, and sending them to a BTC address, or BTC to an Ethereum address, doesn't work.
Side by side
| Point | Bitcoin (BTC) | Ethereum (ETH) |
|---|---|---|
| Supply | Issuance stops at 21 million | No fixed cap; issuance minus burned base fees |
| New-coin schedule | Subsidy halves every 210,000 blocks (about four years) | Validator rewards; varies with total stake |
| Block timing | About 10 minutes on average, variable | 12-second slots |
| Fee basis | Transaction size in bytes × fee rate | Gas used × (base fee + priority fee) |
| Address format | 1…, 3… or bc1… | 0x… on mainnet and layer 2s |
Trading one against the other
Many exchanges list an ETH/BTC pair, where ether is priced in bitcoin. That lets you switch between the two without passing through cash, and its chart shows how ETH is doing relative to BTC rather than relative to dollars. ETH/BTC can fall while both coins rise in dollars. How that pair is quoted and how to choose an order type for it is explained in ETH trading pairs and order types.
Outside crypto exchanges, US investors can also get bitcoin price exposure through exchange-traded products. On 10 January 2024, SEC Chair Gary Gensler said the Commission had approved the listing and trading of a number of spot bitcoin ETP shares. He stressed that the action was "cabined to ETPs holding one non-security commodity, bitcoin" and wasn't an endorsement. An ETP share isn't the same as holding BTC: you can't withdraw it to a wallet, and it trades only during exchange hours.
What to check before you trade either
- Decide what you're trading against: fiat, a stablecoin or the other coin.
- Check the deposit screen for the network, the address format and the required confirmations.
- Compare withdrawal fees per network before you need to withdraw.
- Expect BTC deposits to take longer to credit than ETH deposits on mainnet.
- Never send a wrapped token to the native chain, or the other way round.
FAQ
Does bitcoin really have a maximum supply?
Yes. Issuance halves over time and stops at a total of 21 million bitcoins. The block subsidy started at 50 BTC and halves every 210,000 blocks, roughly every four years.
Is there a maximum supply of ETH?
No fixed cap. New ETH is issued to validators, and the base fee of every transaction is burned, so net supply rises or falls with network activity.
Why does my bitcoin deposit take longer than ETH?
Bitcoin blocks average about ten minutes and vary, while Ethereum has a slot every 12 seconds. Exchanges wait for a set number of confirmations, which takes longer on Bitcoin.
Are spot bitcoin ETPs the same as owning bitcoin?
No. The SEC approved spot bitcoin ETPs on 10 January 2024, but a share is a security in a brokerage account. You can't withdraw it to a bitcoin wallet.
Sources
- bitcoin.org: Frequently asked questions (supply) (checked 2026-11-02)
- Bitcoin developer reference: block chain and block subsidy (checked 2026-11-02)
- Bitcoin developer guide: transactions and fees (checked 2026-11-02)
- ethereum.org: How The Merge impacted ETH supply (checked 2026-11-02)
- ethereum.org: Blocks (checked 2026-11-02)
- SEC: Statement on the approval of spot bitcoin exchange-traded products (10 January 2024) (checked 2026-11-02)
Educational content, not financial, legal or tax advice. Crypto-assets are volatile and you can lose the full amount you put in. Exchange features, fees and rules differ by venue and country and change over time; confirm details on official pages. Last verified 2026-11-02.