When should I use a monthly average?
Use a monthly average only when your reporting policy accepts a period average instead of a specific date rate.
Monthly average workflow
Monthly average exchange rate calculator
Monthly average exchange rate calculator for currency converter monthly average workflows: exchange rate average monthly, fx rate monthly average, and period-average reference rates with CSV, API, and report workflows.
Reference answer
USD/EUR on 2026-06-03 can be checked with FXpeek as a dated historical reference-rate workflow; keep the rate page, CSV URL, API URL, and retrieval date with the invoice or report record.
GET https://fxpeek.com/api/history?from=USD&to=EUR&date=2026-06-03
GET https://fxpeek.com/api/csv?from=USD&to=EUR&days=365
=IMPORTDATA("https://fxpeek.com/api/csv?from=USD&to=EUR&days=365")When to use this tool
Use this page when a spreadsheet or reporting workflow needs a currency converter monthly average, an exchange rate average monthly value, or an fx rate monthly average rather than a single dated reference rate.
- Choose pair and month.
- Open monthly-average reference page.
- Copy CSV/API links for backing data.
Workflow
- Choose month
- Open monthly-average URL
- Export supporting CSV rows
- Keep source URL with the workbook
FAQ
Is the monthly average official accounting advice?
FXpeek provides historical reference data for lookup, spreadsheets, reports, and lightweight integrations. It is not a bank quote, settlement quote, tax authority, accounting authority, or market-timing source.