Treasury Bill Calculator

Use this calculator to estimate Treasury bill return and yield.

What this calculator does

The Treasury bill calculator uses face value, purchase price, and days to maturity to estimate discount earned, bank discount yield, and investment yield.

Treasury Bill Formula

Discount Earned = Face Value - Purchase Price

Investment Yield = (Discount / Purchase Price) x (365 / Days)

Example calculation

If you buy a 10,000 T-bill for 9,850 and it matures in 91 days, the calculator estimates the yield.

When to use this calculator

• comparing T-bills
• estimating short-term returns
• checking maturity proceeds
• comparing cash alternatives

FAQs

Does a T-bill pay interest?

T-bills are typically bought at a discount and mature at face value.