Can someone help me understand how much interest will be attached if a federal tax refund amount was $1800?

WATCH LOG IN abc The IRS said "Interest payments may be received separately from the refund. By law, the interest rate on both overpayment and underpayment of tax is adjusted quarterly. The interest rate for the second quarter, ending on June 30, 2020, is 5% per year, compounded daily. The interest rate for the third quarter, ending September 30, 2020, is 3% per year, compounded daily