What is the value of a 1918 US 1 dollar Federal Reserve note?

Your bill is most likely a Federal Reserve Bank Note which is somewhat different from a standard Federal Reserve Note. As of 05/2015 approximate retail prices are:

• Circulated: $60 to $125 depending on the bill's condition
• Uncirculated: $150

DISCLAIMER: The values quoted are market averages as of the date shown, but may be different for an individual bill due to variations in quality and other factors. Also the wholesale (buying) price of a bill will be less than the selling (retail) price. A reputable currency dealer will be able to give a more accurate valuation based on an in-person inspection.