USD to SGD converter
Rates from the ECB, 28 September 2026. Type an amount in either currency and the other one updates as you type, or type your bank's rate to see what you would get.
- Singapore dollar (SGD)
- 1.28
1 USD = 1.28 SGD, at 1 USD = 1.27773 SGD. The ECB reference rates of 28 September 2026 give 1 USD = 1.27773 SGD.
- Inverse: USD per 1 SGD
- 0.782638
Singapore dollar (SGD): 1.28. 1 USD = 1.28 SGD, at 1 USD = 1.27773 SGD. The ECB reference rates of 28 September 2026 give 1 USD = 1.27773 SGD.
How to calculate
Converts US dollar (USD) to Singapore dollar (SGD) and back at the ECB euro reference rates of 28 September 2026, or at your own rate.
Example with the default inputs (US dollar (USD) 1, Rate: SGD per 1 USD 1.27773): 1 USD = 1.28 SGD, at 1 USD = 1.27773 SGD. The ECB reference rates of 28 September 2026 give 1 USD = 1.27773 SGD.
Formula: SGD = USD × rate. The ECB rate is a cross rate: (SGD per euro) ÷ (USD per euro), to 6 significant figures.
- The default rate, 1 USD = 1.27773 SGD, is worked out by this site from the ECB euro reference rates of 28 September 2026: 1.4538 SGD per euro ÷ 1.1378 USD per euro, rounded to 6 significant figures. The ECB does not publish rates between two non-euro currencies.
- The ECB publishes its reference rates for information purposes only, not for transactions. Banks and cards add a margin or a fee; type their rate to see what you would get.
- Amounts are rounded to 2 decimal places, without trailing zeros (24.4 means 24.40), and rates show up to 7 significant figures; the calculation keeps full precision.
Worked examples
Each example is checked against the calculator on every build.
- US dollar (USD) 100, Rate: SGD per 1 USD 1.278 gives Singapore dollar (SGD) 127.8.Source: hand calculation: amount × rate, at the ECB rate of 28 September 2026 for USD to SGD (1.27773) rounded to 4 significant figures
- Singapore dollar (SGD) 100, Rate: SGD per 1 USD 1.278 gives US dollar (USD) 78.247261.Source: hand calculation: amount × rate, at the ECB rate of 28 September 2026 for USD to SGD (1.27773) rounded to 4 significant figures
- US dollar (USD) 100, Singapore dollar (SGD) 127.8 gives Rate: SGD per 1 USD 1.278.Source: hand calculation: rate = result ÷ amount
Other questions people ask
How much is 1 USD in SGD?
At the ECB euro reference rates of 28 September 2026, 1 USD = 1.27773 SGD, and 1 SGD = 0.7826386 USD.
Where does the USD to SGD rate come from?
The ECB quotes every currency against the euro only. On 28 September 2026, 1 euro bought 1.1378 USD and 1.4538 SGD, so 1 USD = 1.4538 ÷ 1.1378 = 1.27773 SGD. This cross rate is worked out by this site; the ECB does not publish it.
Can I use this rate at my bank?
Not exactly. The ECB publishes its reference rates for information purposes only and strongly discourages their use for transactions. Banks, cards, and exchange offices add a margin or a fee. Type the rate they offer into the rate box to see what you would receive.
How often does the rate change?
The ECB sets one reference rate per currency on each TARGET working day, at about 16:00 CET. This page shows the rates of 28 September 2026; they change when the site is rebuilt with a newer copy.