Lightning Fee Calculator

Lightning fees are base-plus-ppm per hop, usually totaling fractions of a percent. Price a route and understand why coffee-sized Bitcoin payments moved off-chain.

Payment size

sats

Base fee per hop

sat

Fee rate

ppm

Route hops

Results (live)

Total routing fee93 sats

As a percentage0.093%

vs typical on-chain txhundreds of times cheaper

Estimates only, not financial advice. All math runs in your browser; nothing you type leaves this page.

How it works

fee per hop = base fee + size × ppm ÷ 1,000,000

total = per-hop × hops

Worked example

100,000 sats through three hops at 1 sat base + 300 ppm costs 93 sats, 0.093%. The same payment on-chain during congestion could cost several thousand sats.

FAQ

What is a ppm?

Parts per million of the payment: 300 ppm is 0.03% per hop. Node operators set it per channel to price their liquidity.

Why do some payments fail then succeed?

Pathfinding: your node tries routes until one has enough balanced liquidity. Fees can differ per attempt because the route did.

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Estimates only, not financial, tax or investment advice. Verify numbers against your exchange or a professional before acting.