Lightning Network Fee Calculator

How Lightning Network Fees Work

The Lightning Network is Bitcoin's Layer 2 scaling solution, enabling near-instant payments at a fraction of on-chain costs. While on-chain Bitcoin transactions pay miners a fee based on transaction size in bytes, Lightning Network fees work differently — they are based on the payment amount and the route the payment takes through the network.

Every Lightning payment travels from sender to receiver through a series of intermediate nodes, called hops. Each hop charges two types of fees: a base fee (a fixed amount per transaction, usually 0 to 1 satoshi) and a proportional fee rate measured in parts per million (ppm). The total fee is the sum of all hop fees along the route.

Understanding Fee Components

The base fee is a flat charge per transaction regardless of amount. Many well-connected nodes set this to 0 sats to attract routing traffic. The proportional fee rate (ppm) scales with the payment amount. A rate of 100 ppm means the node charges 100 satoshis for every 1,000,000 satoshis routed — effectively 0.01%. Most routing nodes charge between 1 and 500 ppm, with competitive routes often under 100 ppm.

Example

When Lightning Beats On-Chain

For small and medium-sized payments, Lightning is dramatically cheaper. A 10,000-sat payment costs just a few sats on Lightning versus thousands of sats on-chain. However, Lightning fees scale linearly with payment size (due to the proportional component), while on-chain fees are independent of the amount sent. This means for very large payments (typically above 0.5-1 BTC), on-chain transactions can actually be cheaper.

The break-even point depends on current on-chain fee rates and the Lightning route's fee structure. This calculator helps you find that crossover point for your specific parameters.

Tips for Minimizing Lightning Fees

Choose wallets with good pathfinding algorithms that automatically find low-fee routes. Use well-connected nodes as your Lightning peer. Consider opening direct channels with merchants or services you pay frequently — a direct channel means zero routing fees. Many Lightning wallets like Phoenix, Breez, and Zeus optimize fees automatically.

Lightning Network Growth

The Lightning Network has grown rapidly, with thousands of nodes and tens of thousands of payment channels active worldwide. As more nodes join and channel liquidity increases, routes become shorter and fees decrease. This network effect makes Lightning increasingly competitive as a payment rail for everyday Bitcoin transactions, from buying coffee to streaming micropayments to content creators.

Why a Lightning Payment Costs More Than the Fee Estimate

A routing fee is only charged on a payment that succeeds, but the route your wallet finds is constrained by liquidity you cannot see. Every channel along the path must hold enough balance in the direction you are sending, so a well-connected node can still be unreachable at a given amount while a smaller payment goes through instantly. Wallets respond by retrying alternative paths — failed attempts cost nothing, which is why a payment can take several seconds and then settle at a higher fee than the cheapest theoretical route. Two settings decide what happens next: the max fee limit (often expressed as a percentage of the amount, which is why small payments hit the ceiling first) and, if you are receiving, your inbound liquidity, since a channel with no remote balance cannot accept a payment at all. The routing and fee rules are defined in the BOLT specifications.

So read the figure above as the cost of the route you get, not a quoted price. If a payment fails repeatedly, splitting it into smaller parts usually finds liquidity that the full amount could not.