Crypto swap fees explained: spreads, gas & the 0.50% fee

When you swap crypto, the "fee" you pay is rarely a single number. Understanding the parts makes it easy to compare services honestly — and to spot the ones that hide their margin.

The three costs in any swap

• Network (gas) fees. What the underlying blockchains charge to move the assets. This goes to validators/miners, not the swap service, and varies by network — Ethereum mainnet is pricey, while Layer-2s and alt-L1s (Base, Arbitrum, Solana, Tron) are usually cents.
• The spread / exchange rate. The gap between the mid-market rate and the rate you're actually offered. This is where most "zero-fee" services quietly make their money — a worse rate is a fee you can't see.
• The service fee. An explicit, stated markup for routing and running the service.

How CryptoRoute prices it

CryptoRoute charges a flat, transparent 0.50% service fee, shown up front and already included in the "You get" estimate — there's no second, hidden spread layered on top. The live quote in the widget reflects the exact rate and fee for that moment, so the number you confirm is the number you get.

A flat, visible fee is usually cheaper than a "free" swap with a padded rate, because you can actually see and compare it.

How to compare two quotes fairly

1. Convert both to the same input amount.
2. Compare the final amount received, not the advertised fee — the received amount already bakes in spread + fees.
3. Factor in the network you're using; a cheap service fee on an expensive network can still cost more overall.

Tips to pay less

• Use low-fee networks (L2s, Solana, Tron) for stablecoins and small transfers.
• Avoid swapping tiny amounts where fixed network costs dominate.
• Prefer services that show an all-in number, like the live quote here, over ones that only show a headline rate.