Choose a date and currency pair to retrieve a historical daily reference rate from Frankfurter without an API key.
Choose a historical date.
Use the same pair and amount from the calculator above, then compare the selected reference date with an earlier 7, 30 or 90 day point.
Keeps the same base → quote direction as the main lookup.
Cross-check direct and inverse rates, amount conversion and returned-rate date drift.
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Start with a broad dimension converter or jump to the most common metric/imperial pairs. Specialist converters remain available from the full hub.
Choose a date and enter 3-letter base and quote currency codes. The browser requests the matching historical reference rate and converts the entered amount.
Returned dates can reflect the closest available working-day observation. Bank, cash, card, remittance, and executable market rates can differ because of spreads, fees, timing, and provider methodology.
Use the interactive product above first. These notes add interpretation, verification and limits below the results and product controls.
Historical FX feeds often publish business-day reference observations rather than transaction-ready quotes for every calendar day. Compare the requested date with the returned date and keep that difference visible when the chosen day is a weekend or market holiday.
A daily reference rate does not include card spreads, bank markups, wire fees, cash-exchange margins or intraday movement. Use it to reconstruct or compare past values, not to claim the exact price a customer could have traded at that moment.
A move from 0.90 to 0.95 in EUR per USD is not the same statement as the inverse USD per EUR move. Keep the same base and quote direction across dates, and use the inverse only as a cross-check rather than mixing directions in one trend.
After comparing two dates, verify that the percentage change in the converted amount matches the percentage change in the pair rate when the original amount is unchanged. A mismatch usually signals a reversed pair, changed amount or different returned date.
If a historical conversion is used in an audit, reimbursement or report, keep the currency codes, requested date, returned observation date and source name beside the number so someone else can reproduce the lookup later.
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