Convert Currency

Overview

A currency exchange rate API with live FX rates for 170+ currencies, plus a past date's closing rate on paid plans. Currency Converter works by analyzing the amount and currency provided and converting the currency rate. It uses advanced algorithms to convert the currency rate based on the amount and currency and returns the converted currency rate. Each response names both currencies. Paid plans also get the pair's 24-hour change, high and low, its 1-day, 7-day, 30-day and 1-year percent change, and its 30-day high, low, average and volatility; history=true returns the last 30 daily closing rates and hourly=true the rate for each of the last 24 hours.

Live Test Convert Currency Source →

Formula

One function covers the whole catalog: the first argument names the source, the next are its inputs, and the field after them says which single value lands in the cell. Formulas covers the grammar that applies to all of them.

=VERVE("currencyconverter", A2, B2, C2, "convertedValue")

=VERVE.CALL("currencyconverter", A2, B2, C2, "convertedValue")

A2 holds value, B2 holds from, C2 holds to. Arguments go in that order — the same order as the table below.

With literal values

Nothing has to come from a cell — typed values work the same way.

=VERVE("currencyconverter", 1, "USD", "EUR", "convertedValue")

=VERVE.CALL("currencyconverter", 1, "USD", "EUR", "convertedValue")

Inputs

Required inputs are positional, in the order below, followed by the field. Everything else is passed as a "name", value pair after that — the same shape as SUMIFS. Premium inputs are accepted on every plan but only take effect on plans that include them.

Passing an option

=VERVE("currencyconverter", A2, B2, C2, "convertedValue", "date", "2025-06-02")

=VERVE.CALL("currencyconverter", A2, B2, C2, "convertedValue", "date", "2025-06-02")

What lands in your sheet

The field — the argument after the inputs — is what makes the formula resolve to one cell. Its value is a dot-path from the table below, so swapping it is how you pull a different value — one formula per column.

Seeing everything at once

Leave the field out and the formula returns the whole response instead: two columns, field name on the left and value on the right, spilling from the cell you typed in.

=VERVE("currencyconverter", A2, B2, C2)

=VERVE.CALL("currencyconverter", A2, B2, C2)

Response fields

Paths are relative to data. Each one is exactly what the field argument accepts, so swapping it is how you pull a different value into a cell. On a plan without a Premium field the cell reads #PREMIUM(field) rather than a value, so a locked field never looks like a real answer.

Filling a whole column

Both platforms make one batched call for a column rather than one request per cell, and both cost the same — 2 credits per row looked up. How you write it differs, because the two runtimes batch at different points.

=VERVE("currencyconverter", A2:A100, B2:B100, C2:C100, "convertedValue")

In Google Sheets, give the arguments ranges and the answers spill down from the cell you typed in. Custom functions there run synchronously and in isolation, so dragged cells cannot be coalesced — the range form is how a column becomes one call. The field is required here: a per-row two-column table has nowhere to spill. Use a full column per input (A2:A100, not A2) — a single-cell reference is read as row 1 only and the rest of the column comes back blank.

In Excel, type the formula once and fill down — no range form and none needed, because its runtime is asynchronous and the add-in coalesces the calls a fill produces into a single batched request. Do not hand VERVE.CALL a range: Excel flattens it into positional arguments, so A2:A100 arrives as a hundred separate arguments and the cell reads #ERR rather than filling.

Either way, column A holds your value values and the answers land beside them, one row each, blank rows skipped.

When a cell doesn't fill

A failed lookup returns readable text starting with #ERR rather than a spreadsheet error, because Excel cannot show a custom message on a real error — you would get a bare #VALUE! with no reason. The trade-off is that IFERROR() will not catch it; test with LEFT(cell, 4) = "#ERR" instead. Error handling covers the rest.

Before the formula works

The add-in reads the API key you saved once in the side panel — the key never goes in the formula, so a shared sheet does not leak it and a collaborator without access simply sees the last calculated values.

1. Install the add-in for Google Sheets or Excel.
2. Open the side panel and sign in, or paste a key from your dashboard.
3. Type the formula above into any cell.

Supported Currencies

170+ world currencies supported including fiat currencies, cryptocurrencies, and precious metals.

Use cases

Multi-Currency Storefront Checkout

E-commerce platforms convert catalog prices to shoppers' local currencies and display current exchange rates at checkout before processing payment.

Cross-Border Expense Reporting

When employees submit foreign travel receipts, accounting software converts reimbursable expenses into company base currency using the exact exchange rate.

International Invoice Generation

Generate export invoices in foreign buyer currencies by calculating converted subtotals and showing whether the exchange rate moved up or down.

Travel Card Expense Tracking

To prevent surprise foreign transaction charges, mobile banking apps calculate local currency balances on the fly using real-time conversion rates.

Other ways to use Convert Currency

Set up Convert Currency on VerveSheets, or reach the same source a different way. Your VerveSheets account and credits work on all of them — one key, one balance.

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