Calculate the Receive Amount

In components/Converter.js, use the shared getRate helper and derive the receive amount from the current send amount.

const rate = getRate(fallbackRates, from, to);
const result = Number(amount || 0) * rate;

Keep the receive field read-only because it represents derived data.

Test it

Enter 1000 and switch between currency pairs. The receive value should update immediately.

Checkpoint

The converter now has a complete local calculation path from input amount to output amount.