Free tools
Bitcoin & payment calculators
Small, fast calculators for the numbers that decide how you accept payments: satoshi conversions, on-chain and Lightning fees, trading profit, and what a sale really costs through cards versus bitcoin. Everything runs in your browser, with no sign-up and no tracking of the values you type.
Satoshi Calculator
Convert between satoshis, bitcoin and fiat in one place. One bitcoin is always 100,000,000 satoshis, so the only variable is the price you enter.
Open calculator →Bitcoin Profit Calculator
Enter what you paid, what you sold for and the fees on each side. The calculator returns net profit, return on investment and the sell price you need to break even.
Open calculator →Bitcoin Transaction Fee Calculator
On-chain fees depend on transaction size in virtual bytes, not on the amount you send. Set the number of inputs and outputs, pick a fee rate, and see the cost.
Open calculator →Lightning Network Fee Calculator
Lightning routing fees combine a flat base fee per hop with a proportional rate in parts per million. Enter the amount and the channel policies to see the total.
Open calculator →Bitcoin Payment Fee Calculator
Compare the real cost of accepting one sale through cards, through a bitcoin processor and over Lightning. Enter the rates you have been quoted and see the difference per order and per month.
Open calculator →Crypto Network Fee Calculator
Every blockchain prices transactions differently. Pick a network, enter the fee in its native asset and the asset price, and see the true cost of a transfer in fiat and as a share of the amount sent.
Open calculator →USDT Transfer Fee Calculator
USDT lives on several networks and the same transfer can cost a cent or several dollars depending on which one you use. Pick a network or enter the fee quoted to you, and see the real cost per transfer and per month.
Open calculator →Solana Transaction Fee Calculator
Solana fees combine a tiny fixed base fee per signature with an optional priority fee that speeds up inclusion. Enter the transaction details and see the total in lamports, SOL and fiat.
Open calculator →How to use these calculators
Each tool asks for the rates you have actually been quoted rather than pulling a live feed, so the output matches the terms in front of you. That matters most when comparing processors: a headline percentage means little until you add fixed per-transaction fees, payout costs and your average order value.
Once you have the numbers, use the directory to see which providers fit your risk profile and payment mix. Bitcoin and Lightning processors and high-risk specialists price very differently from mainstream card acquirers.