USD to SAR – Live Rate, Historical Chart & Converter

The USD to SAR peg: 3.75 explained

Unlike almost every other currency pair on this site, the USD to SAR rate does not really "move." The Saudi Riyal has been pegged at 3.75 SAR per US Dollar since 1986, and the Saudi Central Bank (SAMA, the Saudi Arabian Monetary Authority) defends it with one of the world's largest foreign-reserve piles — roughly $450 billion as of 2024. So when you check the live USD to SAR rate above, you will almost always see something between 3.7495 and 3.7515. That tiny band is the whole story.

Why Saudi Arabia pegs to the Dollar

• Oil is priced in Dollars. Saudi Arabia is the world's largest oil exporter, and almost all of its export revenue is invoiced in USD. Pegging the Riyal to the Dollar removes currency risk from the kingdom's core revenue stream.
• Import price stability. Most of Saudi Arabia's imports — food, machinery, consumer goods — are also Dollar-priced. A peg means domestic price stability without active monetary policy.
• Investor confidence. The peg lets Saudi entities borrow in international markets at near-US rates — essential for the Vision 2030 infrastructure program.

How SAMA maintains the peg

SAMA holds reserves in US Treasuries and other Dollar-denominated assets. When Dollar demand rises in the Saudi market, SAMA sells Dollars from its reserves; when demand falls, it buys. The band is so tight (3.7495–3.7515) that arbitrage is essentially zero — you cannot make money trading USD/SAR.

What the peg means for you

Because the rate doesn't really move, your only real cost is the spread your bank or exchange house charges. Saudi banks typically quote 3.74 to buy Dollars and 3.76 to sell — a 0.5% spread that looks small but adds up on large transfers. For amounts above $5,000, specialist services like STC Pay, Al Rajhi, or international brokers routinely beat Saudi retail banks by 0.3–0.4%. For the historical background on why the peg exists, read our guide to the USD-SAR peg and live rate, or use the live USD to SAR converter at the top of this page.

Historical context: how the peg came to be

• 1975–1986: the Riyal was pegged to Special Drawing Rights (SDR), a basket — but Dollar swings made this volatile.
• 1986: SAMA switched to a hard Dollar peg at 3.75, and the rate has not moved meaningfully since.
• 2014–2016 oil crash: pressure on the peg was severe, but SAMA defended it by drawing down $200 billion in reserves.
• 2020 COVID: brief speculation about a depeg; SAMA again defended, and the peg held.

The USD/SAR peg is a Saudi policy choice, not a market outcome. A future Saudi government could in theory change it, but no such plan is currently public.