RON to USD Converter
Romanian leu to US dollars runs through the euro here, because the European Central Bank publishes euro reference rates and neither side of this pair is the euro. The page opens with RON in the From box and USD in the To box, ahead of anything the converter last remembered, and converts at the set for the date printed beside the answer. The panel gives you the working rather than a lone number: lei per euro, dollars per euro, the RON to USD rate those two produce to six significant figures, and the line saying the pair is calculated from those two published euro rates. The publication date appears in the chip above the panel, in the Rates from cell under the form, and in the text the Copy button writes to your clipboard, so no figure ever travels without the day it belongs to. The leu also has a retired code behind it, and the page treats that as a mistake worth catching rather than a rate to invent: ROL was the leu before the 2005 redenomination, at 10,000 ROL to 1 RON, so it is absent from the currency menus and the code is refused with that explanation instead of being read as RON. Your amount is converted in your own browser and is never sent to this site or to the ECB. And the honest limit is printed under the answer, not buried: a reference rate is a daily statistical observation with no fee, no spread and no card markup in it, so a bank, a card or a transfer service settles at a different number.
Loading the published reference rates.
The rates in the panel are the euro reference rates the European Central Bank published on the date shown. The server that answered this page keeps its own copy of that file, asked for at most once every twelve hours and handed unchanged to everyone that server answers, and the amount you type is converted in your own browser: it is never sent anywhere. The date beside the answer is the one you are actually looking at. The ECB publishes on working days only, so a Saturday or a public holiday shows the previous working day's set rather than a new one.
Dated, and published once a day. Arithmetic at the European Central Bank reference rate for the date shown beside every answer, cross-converted through the euro. Reference rates are published once each working day for statistical use: they are not the rate a bank or a card will give you. Rates from the dated sample that ships with this page for 2026-09-07. Amounts between two currencies that are not the euro are our own calculation from two published euro rates. Source: European Central Bank euro foreign exchange reference rates.
Common questions
- How many US dollars is 100 Romanian lei?
- It depends on the published set the page loaded, and that set's date is printed beside the answer. The arithmetic is 100 multiplied by the dollars-per-euro rate and divided by the lei-per-euro rate. In the dated set that ships with this page, the ECB publication of 2026-09-07, those were 1.1622 USD and 5.2519 RON to one euro, giving 1 RON = 0.221291 USD, so 100 RON came to 22.13 USD, 1,000 RON to 221.29 USD and 10,000 RON to 2,212.91 USD. Those are worked figures from that one dated set rather than a rate for today.
- Why is RON to USD called a calculated rate?
- Because the ECB never published it. The source file is euro foreign exchange reference rates, so it carries lei per euro and dollars per euro, and the rate between the two is our own division of one by the other. The readout says so in as many words under every answer, and it prints both euro legs so you can repeat the division yourself against the ECB's page for the same date. A pair that does include the euro, such as EUR to RON, uses a published rate directly and the page says that instead.
- What about ROL, the old leu?
- The page refuses it and explains why, which is safer than converting it. ROL was the Romanian leu before the 2005 redenomination at 10,000 ROL to 1 RON, so treating an amount in old lei as new lei would be wrong by four orders of magnitude. The ECB file carries RON only, so ROL never appears in the currency menus, and wherever the code does reach the converter it is refused with that explanation rather than quietly given the RON rate. The same guard catches TRL for the Turkish lira.
- How current are these figures?
- The ECB publishes one set of euro reference rates on each working day, in the afternoon, Central European Time. The server that answers this page asks the ECB for that file at most once every twelve hours and hands the one set it holds, unchanged, to everyone it answers, which is why the observation date sits beside every answer instead of a clock. A Saturday, a Sunday or a public holiday shows the previous working day's set rather than a new one. Past three days the page marks how old the set is, and past seven days it stops converting altogether and prints how old the figures are instead of a number, because a week-old reference rate is not a statement about today. When the rates cannot be loaded, the page states the reason and names the date and the origin of whatever set is on screen, so an old figure is never presented as a new one.
- Is this what my bank will pay me for lei?
- No. A European Central Bank reference rate is an observation published once each working day for statistical use, with no transfer fee, no exchange spread and no card scheme markup in it. A bank, a card issuer or a transfer service prices those in and settles at its own number. This page shows the reference observation for the date printed on it, and it is not an offer from anybody.
- Can I convert dollars back into lei here?
- Yes. The Swap button in the row under the panel, beside Copy, reverses the pair in place, without a reload, and keeps the amount you typed, which makes the page a US dollars to Romanian lei converter at the same dated set. In the 2026-09-07 sample that direction read 1 USD = 4.51893 RON. Both currency menus stay open as well, so the same amount goes to euros or to any other currency in the loaded set.
- How precise is the result?
- The rate is used unrounded and only the display rounds. Amounts print to two decimal places, and anything smaller than a cent keeps four significant figures instead of rounding away to zero, so small amounts stay readable. The Rate cell carries six significant figures, 0.221291 dollars to the leu in the dated 2026-09-07 sample, which is more precision than the published file itself holds for the pair.
- Is anything I type uploaded?
- No. This site's route fetches one public ECB file, identical for every visitor, and the conversion happens in your browser against that file. Your amount and your pair go nowhere, not to the ECB and not into an analytics event. Copy puts the full answer on your clipboard with the publication date, both euro legs, the reference-rate note and the ECB address, so the figure keeps its context wherever you paste it.
Arithmetic at the European Central Bank reference rate for the date shown beside every answer, cross-converted through the euro. Reference rates are published once each working day for statistical use: they are not the rate a bank or a card will give you.