Lightning Network Fee Calculator
Calculate the total cost of a Lightning Network payment including base fees and proportional fee rates across multiple hops. Compare Lightning costs against on-chain Bitcoin transactions to see exactly how much you save.
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.
Lightning Network Fee Formula
Total Fee = Σ (Base Fee + Payment Amount × Fee Rate ÷ 1,000,000) per hop
Where: Base Fee = fixed sats per hop, Fee Rate = proportional rate in ppm
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
Sending 10,000 sats through 3 hops (1 sat base fee, 100 ppm)
- Base fees: 3 hops × 1 sat = 3 sats
- Proportional fees: 3 hops × (10,000 × 100 / 1,000,000) = 3 × 1 = 3 sats
- Total Lightning fee: 6 sats
- At $65,000/BTC: $0.0039
- On-chain fee for comparison: ~5,000 sats = $3.25
- Lightning savings: $3.25 vs $0.004 — 99.9% cheaper
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.