Convert USD to PLN at the mid-market exchange rate. Access real-time rates via our /api/rate endpoint (free API key required) or the developer docs.
Exchange Rate Trend
USD → PLN
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USD to PLN Conversion Table
Convert USD to PLN
USD
PLN
$1
zł3.89
$5
zł19.44
$10
zł38.88
$25
zł97.21
$50
zł194.42
$100
zł388.84
$500
zł1,944.18
$1,000
zł3,888.35
$5,000
zł19,441.75
$10,000
zł38,883.50
Convert PLN to USD
PLN
USD
zł1
$0.2572
zł5
$1.2859
zł10
$2.5718
zł25
$6.4295
zł50
$12.8589
zł100
$25.7178
zł500
$128.5892
zł1,000
$257.1785
zł5,000
$1,285.8925
zł10,000
$2,571.7849
About the US Dollar (USD)
The United States Dollar (USD) is the world's primary reserve currency and the most traded currency globally. It is issued by the Federal Reserve and is used as the benchmark for commodities like oil and gold.
Key Factors That Influence USD
Federal Reserve interest rate decisions
US employment data and GDP growth
Inflation rates (CPI)
Global risk sentiment and safe-haven demand
Trade balance and current account
About the Polish Zloty (PLN)
The Polish Zloty (PLN) is managed by Narodowy Bank Polski. As one of the EU's largest economies outside the Eurozone, Poland's currency reflects its growing economic importance.
Key Factors That Influence PLN
NBP monetary policy
EU fund inflows
Export performance
Inflation targeting
Political and EU relations
Understanding the USD/PLN Exchange Rate
The USD/PLN exchange rate tells you how many Polish zlotys you get for 1 US Dollar.
This is the mid-market rate — the real exchange rate without any markup. It's the same rate used by Google Finance.
AllRatesToday provides this rate via a free REST API, updated every 60 seconds from institutional foreign exchange market data.
Integrate live USD/PLN rates into your app with our official SDKs for JavaScript, Python, PHP, and React.
The exchange rate between USD and PLN fluctuates based on supply and demand in the foreign exchange market.
Economic data releases, central bank announcements, and geopolitical events can all cause significant movements in the rate.
Currency converter API for USD to PLN
This converter is a thin layer over two APIs. Both return JSON, both take one
HTTP call, and both have a free tier — no credit card.
Mid-market exchange rate API
The live interbank midpoint — the number shown above. It moves continuously
and is refreshed every 60 seconds across 163 currencies.
Use it for pricing, checkout, display and anything a customer sees.
The rate a named institution actually published for a given date, from
121 central banks and 3 tax
authorities. Unlike a mid-market rate it never changes after publication,
which is what tax filings, customs valuations and audits require.
Any past date — /central-bank/{bank}/2026-06-30. If the bank did not publish that day you get the most recent prior date, flagged.
Every bank at once — /api/v1/central-banks/rates returns all sources for one pair, so you can compare what each institution published.
Nothing is guessed — pairs a bank does not print are cross-computed from that bank's own table and returned with "derived": true and the method used. Banks are never mixed.
An MCP server — @allratestoday/mcp-server — lets Claude, Cursor and other MCP clients pull these rates directly, no glue code.
Free tier
300 requests, no credit card, no trial expiry. Paid plans start at €4.99/month for 5,000 requests a month.
Which one do you need? If a regulator, tax authority or auditor
names the source, use the official rate — the two can differ by several percent
on the same day. For everything a customer sees, use the mid-market rate.
On weekends and holidays the official endpoints return the most recent published
date, which is the figure compliance rules expect you to apply.
Official USD and PLN Central Bank Rates
The rate on this page is the live mid-market rate. For tax filings, customs valuations, audits, and
compliant invoicing you often need the official reference rate published by the central bank instead.
AllRatesToday also serves published central-bank rates as JSON, with history and a free latest-rates tier.
Exchange rates are determined by supply and demand in the global foreign exchange (forex) market,
the largest financial market in the world with over $6 trillion traded daily.
Floating vs Fixed Rates: Most major currencies like USD and PLN have floating exchange rates,
meaning their value is determined by market forces. Some currencies are pegged to another currency (usually USD) at a fixed rate.
Bid and Ask Prices: In forex markets, currencies are quoted with a bid price (what buyers pay) and ask price (what sellers receive).
The mid-market rate shown on this page is the midpoint between these two prices.
Rate Fluctuations: The USD/PLN rate can change every second during trading hours.
Major economic announcements, interest rate decisions, and geopolitical events can cause significant moves in either direction.
Frequently Asked Questions About USD/PLN
How do I convert USD to PLN?
To convert USD to PLN: (1) Use the calculator above to see the live mid-market rate.
(2) For programmatic access, call our API: GET /api/v1/rates?source=USD&target=PLN.
Current rate: 1 USD = 3.8883 PLN.
Get your free API key at allratestoday.com/register.
What is 1 USD in PLN today?
1 USD equals 3.8883 PLN as of today.
This is the mid-market exchange rate, which is the real rate without any bank markup.
Rates fluctuate constantly based on market conditions, so check back regularly for updates.
Is the USD going up or down against PLN today?
The USD/PLN exchange rate fluctuates throughout the day based on market conditions.
Today's rate is 1 USD = 3.8883 PLN.
Check our historical chart above to see the trend over the past day, week, month, or year
to understand whether USD is strengthening or weakening against PLN.
What is the best time to buy PLN with USD?
The best time to exchange USD to PLN depends on market conditions.
Generally, rates tend to be more favorable during overlapping trading hours between major financial centers
(London, New York, Tokyo). Avoid exchanging during weekends or bank holidays when spreads may be wider.
Use our historical chart to identify trends and consider setting up rate alerts.
Why is USD falling or rising against PLN?
Exchange rates between USD and PLN are influenced by: interest rate differentials between
central banks, inflation rates, GDP and economic growth data, trade balances, political stability,
and global market sentiment. Major announcements from the Federal Reserve, ECB, or other central banks
can cause significant short-term movements in the USD/PLN rate.
How can I get USD/PLN rates in my app?
Use the AllRatesToday API: (1) Register for a free API key at allratestoday.com/register.
(2) Call GET /api/v1/rates?source=USD&target=PLN with your Bearer token.
(3) Rates update every 60 seconds from institutional foreign exchange market data.
(4) Install our official SDK for JavaScript (npm), Python (PyPI), or PHP (Packagist) for even faster integration.
What is the mid-market rate for USD/PLN?
The mid-market rate (also called the interbank rate) is the midpoint between buy and sell prices
in global currency markets. The current mid-market rate is 1 USD = 3.8883 PLN.
This is the "real" exchange rate without any bank markup.
AllRatesToday provides this rate via a free API, sourced from institutional foreign exchange market data.
Other USD conversions
Building USD/PLN into software?
These rates come from the AllRatesToday API. If you need them in an
application rather than on a page, these are the places to start:
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