Coin vs TokenERC-20

A coin is the native asset of its own blockchain, such as BTC or ETH; a token is issued by a smart contract on an existing blockchain.

People use 'coin' and 'token' loosely. The useful distinction is where the asset lives: a coin is native to its blockchain, while a token is issued on top of an existing chain by a smart contract.

Category
Cryptocurrency and Blockchain
Reading time
3 min
Also called
Native coin, Crypto token, Coin and token difference
Updated

Coins and tokens in plain words

A coin is a blockchain's native asset; for example, bitcoin is Bitcoin protocol's native token.1

Ethereum's native cryptocurrency, ether, is used to pay for all transactions on the network.2

Tokens are created by smart contracts; on Ethereum, those that follow the common standard are called ERC-20 tokens.2 The vocabulary is still evolving, and no single body defines the terms.2

How to tell a coin from a token

  1. Find the home chain

    Ask whether the asset is the base asset of its own blockchain.1

  2. Check what pays fees

    Native coins like ether pay for transactions.2

  3. Look for a contract

    Check how it is issued: a token comes from a smart contract that defines its rules and supply.1

  4. Check the standard

    ERC-20 marks a fungible token on Ethereum.2

  5. Fungible or unique

    Native coins are meant to be fungible; tokens can be fungible or non-fungible.1

  6. Note the label varies

    Sites and regulators may use the words differently.2

Worked examples

Example 1 — Gas in the native coin

0.0012 ETH fee

Hypothetically you send an ERC-20 token using 60,000 gas at 20 gwei.

Example 1 — Gas in the native coin — calculation
Gas cost in gwei60,000 × 20 = 1,200,000 gwei
In ETH1,200,000 ÷ 1,000,000,000 = 0.0012 ETH

The fee is paid in ether, the network's native cryptocurrency, not in the token.2

Example 2 — Stuck without the coin

Transfer blocked

Hypothetically your wallet holds 500 USDC tokens and 0 ETH; a transfer needs 0.001 ETH.

Example 2 — Stuck without the coin — calculation
ETH needed0.001
ETH held0
Shortfall0.001 − 0 = 0.001 ETH

Without the native coin you cannot pay for the transaction.2

Example 3 — Token supply set by contract

900,000 tokens outside team

Hypothetically a contract mints 1,000,000 tokens and gives 10% to a team.

Example 3 — Token supply set by contract — calculation
Team share1,000,000 × 0.10 = 100,000
Remaining1,000,000 − 100,000 = 900,000

Supply is set by the smart contract that defines and issues the token.1

Coin vs token

AspectCoinToken
Where it livesIts own blockchainOn top of another chain
Created byProtocol rulesA smart contract
Pays network feesYesUsually no
ExamplesBTC, ETHERC-20 tokens, NFTs

Why the difference matters to traders

Advantages and disadvantages

Advantages

  • Clarifies what you actually hold.
  • Helps avoid wrong-network deposits.
  • Shows where fees come from.
  • Highlights contract risk in tokens.

Disadvantages

  • Terms are used inconsistently.
  • Same ticker can exist on several chains.
  • Token contracts can carry hidden controls.
  • Legal treatment differs by country.

Going deeper

Read as far as you need. Each level builds on the one before it.

Native vs built on top

Beginner

Bitcoin is the Bitcoin protocol's native token, while ERC-20 tokens are issued by smart contracts on Ethereum.1

Fungible and non-fungible

Intermediate

Non-fungible tokens can stand for one-of-a-kind items, such as an artwork or a property title.2

No single definition

Advanced

There is no sole authority on exact token definitions, and legal and tax classification differs by country.2

Common mistakes

  1. No gas coin

    Holding tokens but no native coin for fees.

  2. Wrong network

    Sending a token on a chain the receiver doesn't support.

  3. Fake contracts

    Buying a token with the right name but wrong contract.

  4. Assuming same rights

    Thinking a token gives ownership of a company.

Check your understanding

Test yourself before moving on. Each answer comes with an explanation.

Q1A transfer uses 50,000 gas at 30 gwei. What is the fee in ETH?
Q2Is an ERC-20 asset a coin or a token?

Key points to remember

  1. Coins are native to their blockchain.
  2. Tokens are issued by smart contracts.
  3. Native coins pay network fees.
  4. Tokens can be fungible or unique.
  5. Definitions and legal treatment differ by country.

Frequently asked questions

Is ETH a coin or a token?

It is Ethereum's native coin.

Can one token exist on many chains?

Yes, through separate contracts or bridges, so check the network.

Are tokens securities?

It depends on the token and the jurisdiction; rules differ by country.

Further learning

Sources

This article is written in our own words. The sources below support the specific facts, rules and figures marked with a number in the text. Links open the original publisher’s page.

  1. NIST. NISTIR 8301: Blockchain Networks: Token Design and Management Overview (opens in a new tab) Checked .
  2. Board of Governors of the Federal Reserve System. Tokens and accounts in the context of digital currencies (FEDS Notes) (opens in a new tab) Checked .

Educational content, not financial advice. Examples use hypothetical prices and simplified costs; actual fees, margin rules and regulations vary by broker, market and country. We are not affiliated with any publisher linked above. Last reviewed . Report an error or request a source credit.