Finance

Loan Calculator: Amortized, Deferred, and Bond Loans

Estimate payments, total interest, and schedules in seconds.

Calculator Inputs

Loan Inputs
Results
Payment Every Period --
Total of Payments --
Total Interest --
Principal Interest
Period Payment Principal Interest Balance

What This Calculator Does

Use this loan calculator for amortized loans, deferred payment loans, and bond-style present value calculations.

Pick compounding and payback frequency to model realistic loan scenarios quickly.

Inputs Explained

  • Loan Type: Selection: use your policy-compliant value for accurate output.
  • Loan Amount: Numeric value: use your policy-compliant value for accurate output.
  • Loan Term (Years): Numeric value: use your policy-compliant value for accurate output.
  • Loan Term (Months): Numeric value: use your policy-compliant value for accurate output.
  • Interest Rate %: Numeric value: use your policy-compliant value for accurate output.
  • Compound: Selection: use your policy-compliant value for accurate output.
  • Pay Back: Selection: use your policy-compliant value for accurate output.
  • Currency: Selection: use your policy-compliant value for accurate output.

Formula

Payment = P × [i / (1 − (1 + i)^−n)] where i is periodic rate, n is number of payments

Example Calculation

  • Loan type: amortized
  • Amount: 100000
  • Years: 10
  • Months: 0
  • Rate: 6
  • Compound: monthly
  • Pay back: monthly
  • Currency: USD
  • Payment per Period $1,110.21
  • Total of Payments $133,224.60
  • Total Interest $33,224.60

Frequently Asked Questions

What is an amortized loan?

An amortized loan is repaid with equal periodic payments that include both principal and interest.

What is a deferred payment loan?

A deferred payment loan pays a lump sum at maturity with interest compounded over time.

What is a bond-style loan?

A bond calculation determines the present value of a predetermined amount due at maturity.

What is APR vs APY?

APR is a nominal annual rate; APY accounts for compounding.

Does payment frequency matter?

Yes. Monthly, quarterly, or annual payments change the number of payments and interest accrued.

Can I use this for mortgages?

Yes. Use amortized mode with monthly compounding and monthly payments.

How is total interest calculated?

Total interest equals total payments minus principal for amortized loans.

Can I switch currencies?

Yes. Choose a currency to format the results.

Is this tool free?

Yes. It is free and requires no registration.

Does it show an amortization table?

Yes. Open the schedule to see principal and interest by period.

Related Tools

Loan Calculator: Amortized, Deferred, and Bond Loans Explained

This loan calculator estimates payments, total interest, and amortization schedules. It supports amortized loans, deferred payment loans, and bond-style present value calculations with adjustable compounding and payback frequency.

Interactive Loan Calculator Tool

Choose the loan type above, enter amount, term, interest rate, and compounding schedule. The results update instantly with payment totals and a clear principal vs interest split.

How to Calculate Loan Payments (Simple Explanation)

Loan Payment Formulas

Payment = P × [i / (1 − (1 + i)^−n)]

Future Value = P × (1 + r/m)^(m×t)

Present Value = FV ÷ (1 + r/m)^(m×t)

Loan Calculation Examples (Step-by-Step)

Mortgage (Amortized)

Loan $250,000, 30 years, 6% APR monthly. Payment uses amortized formula with 360 payments.

Auto Loan (Amortized)

Loan $25,000, 5 years, 7% APR monthly. Total interest = total payments − principal.

Deferred Payment Loan

Loan $100,000, 10 years, 6% compounded annually. Amount due = $100,000 × 1.06^10.

Bond Present Value

Future value $100,000 due in 10 years at 6% APY. PV = $100,000 ÷ 1.06^10.

Amortization Schedule Guide

An amortization table shows how each payment splits between interest and principal. Early payments are interest-heavy; later payments pay down more principal.

APR vs APY (Compounding)

APR is the nominal annual rate. APY reflects compounding. Monthly compounding produces a higher effective annual rate than yearly compounding.

When Businesses Need Loan Calculations

Common Loan Calculation Mistakes

Loan Calculation Cheat Sheet

Monthly payments: 12 payments per year.

Total interest: Total paid − principal.

Deferred payment: Future value from compounding.

Loan Calculator FAQ

What is an amortized loan?

An amortized loan is repaid through equal periodic payments with interest and principal portions.

How is total interest calculated?

For amortized loans, total interest equals total payments minus principal.

What is a deferred payment loan?

It is repaid as a single lump sum at maturity, with interest compounded over time.

What does bond present value mean?

It is today’s value of a future payment discounted by the interest rate.

Can I use this for mortgages?

Yes. Choose amortized mode with monthly compounding and payments.

Does payment frequency matter?

Yes. It changes the number of payments and the effective interest per period.

Is APR the same as APY?

No. APY includes compounding effects while APR is nominal.

How do I see the amortization schedule?

Use “View Amortization Table” to expand the schedule.

Can I compare loan offers?

Yes. Adjust rate, term, and compounding to compare outcomes.

Is this loan calculator free?

Yes. It’s free with no registration required.

Disclaimer: This calculator is for informational purposes only and does not constitute legal or financial advice. We do not guarantee the accuracy or completeness of the results. Please consult a qualified professional for advice specific to your situation.