¥ · Asia
Japanese Yen (JPY)
The yen is the third-most-traded currency and the classic funding currency: for years it was borrowed cheaply to finance positions elsewhere, which ties its movements to global risk appetite as much as to Japanese data.
Reference reading
158.0223JPY per 1 USD
Read 10 Nov 2026, 15:30 UTC, source last published 10 Nov 2026, 00:00 UTC, quoted against USD.
166 currencies in this reading
One JPY buys
- USD
- 0.006328
- EUR
- 0.005648
- CNY
- 0.042314
- AUD
- 0.009163
Where the Japanese Yen circulates
It is also the currency most often displayed wrong. The yen has no minor unit in practical use, so amounts are shown as whole numbers — a two-decimal yen figure is a formatting bug, not a precision improvement.
- Domestic pricing in Japan, where amounts are conventionally whole yen.
- Carry trades and cross-border funding, which is why the yen strengthens abruptly in risk-off episodes.
- Invoicing between Japanese firms and their overseas suppliers and subsidiaries.
How it is quoted, and what to watch
Store the quote as a number and format with the JPY currency code — Intl handles the zero-decimal display for you. A common mistake is dividing by 100 for display; the quote is already per one yen-unit of the base, so no scaling is needed.
Reading JPY from the API
Ask for JPY as the base and every quote in the response is re-expressed against it — the reading, the catalogue and the account balance all arrive together.
Crosses are the quotient of two published quotes, so a pair you need but we do not list is still one division away.
curl · re-quote the catalogue against this currency
curl -s "https://fiatagent.base44.app/api/v1/rates?base=JPY" \
-H "Authorization: Bearer $FIAT_AGENT_KEY"JPY questions, answered
How many decimal places should a yen amount use?
None in normal display. The currency is conventionally shown as whole units, and Intl.NumberFormat with JPY applies that automatically.
Why does the yen move more than its interest rate suggests?
Because it is used as a funding currency: when risk appetite falls, positions financed in yen are unwound, which moves the currency independently of Japanese domestic conditions.
Quote JPY without a subscription.
The open endpoint needs no key. A key opens with a 5,000-request signup bonus and reaches every stored reading by date.