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Calculate accurate accrued interest on loans, bonds or savings instantly with our free accrued interest calculator. Simple & compound interest tool.
Accrued interest is the amount of interest that has built up on a loan, bond, or savings account, but has not yet been paid or received. Our Accrued Interest Calculator helps you calculate this amount quickly and accurately. Whether you want to know how much interest has built up on a bond, how much interest your savings has earned monthly, or what interest you owe on a loan, this tool is made for you.
Accrued interest is the interest that grows over time on a principal amount, from the last payment date to a specific day. Even if you have not paid it yet or received it yet, it still exists. Banks, investors, and even accountants calculate accrued interest daily. For example, if you invested $10,000 at 5% annual rate for 90 days, the interest keeps accumulating every day, even before the payment date arrives.
Here is the normal formula used in our calculator:
Simple Accrued Interest Formula:
Interest = Principal × Rate × Time
Where:
– Principal = original amount
– Rate = annual interest rate (as decimal)
– Time = Days Accrued ÷ Days in Year
For example:
Interest = $7500 × 6% × (90 ÷ 365)
Interest = $7500 × 0.06 × 0.2466 = $110.97
Compound Accrued Interest Formula:
Amount = P × (1 + r/n)^(n × t)
Accrued Interest = Amount – Principal
Where:
– n = times compounded per year (monthly = 12, daily = 365, etc.)
– t = time in years
Our online calculator accepts principal amount, interest rate, start date, end date, day count convention and compounding type (simple or monthly, quarterly, daily). It then calculates the exact number of days and applies the correct formula to get precise interest accrued. It works for:
You will instantly see:
– Accrued Interest
– Total Amount with Interest
– Number of days accrued
– Formula used in calculation
Using the calculator:
Interest = 7500 × 0.06 × (90 ÷ 365) = $110.96
Accrued interest is an important concept in banking, finance, bonds and savings. Whether you are a student, investor, or business owner, knowing how interest builds up daily helps you plan better. Our Accrued Interest Calculator removes the headache of manual calculations and gives you a clear result instantly. You can calculate simple or compound accrued interest for any number of days, any month, and even for bonds using 30/360 day count.
Use our tool daily as your go-to loan calculator, monthly accrued interest calculator or savings account interest calculator. It's accurate, fast, and supports all major formulas used in banking and Excel.
Accrued interest is calculated using the formula: interest = principal × annual rate × (days accrued ÷ days in year).
If the time is one full year, then interest = $10,000 × 5% = $500. For 6 months, it would be $250.
If you lend someone $2,000 at 4% interest, after 30 days the interest has already started to build. Even if the payment is not made yet, that unpaid interest is called accrued interest.
Yes. Our calculator supports monthly compounding as well as simple interest, so you can calculate interest for monthly periods easily.
Yes, you can also calculate it in Excel using formulas like =Principal * Rate * (Days/365) or by using FV and PMT formulas. Our online calculator works faster than Excel.