BTC Invoice Calculator

Convert your invoice from euros to Bitcoin instantly. Live rate, mempool fee, scannable QR and a BIP21 payment link — no account, no middleman, no tracking.

Why this tool?

Webrock Media accepts Bitcoin as a payment method — no surprise for an agency focused on the Bitcoin, AI and fintech sectors. But converting an invoice to BTC is often a puzzle: which rate do you use, what does the network cost, and does the right amount arrive down to the cent? This calculator solves that.

Live rate via mempool.space, refreshed every minute.
Mempool fee in sat/vB — so you know whether now is a good moment to send.
BIP21 URI with address and amount: one click in any wallet.
Sats toggle for those who think in satoshis.

Frequently asked questions

Which rate is used?▾

The EUR/BTC rate from mempool.space, an open-source non-KYC explorer. If it is temporarily unreachable, the tool falls back to CoinGecko.

Will the amount settle exactly?▾

BTC is volatile. We use the rate at the moment the invoice is sent and accept a margin of ±1% between sending and confirmation.

What about VAT?▾

For Dutch clients VAT applies to the euro invoice amount — regardless of the chosen payment method. For B2B inside the EU the reverse-charge mechanism applies.

Lightning payment possible?▾

For amounts under €500 on request via LNURL — reach out for a Lightning invoice.

A Bitcoin project?

We build SEO, GEO and websites for exchanges, mining hardware and custody providers.

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