Financial Calculator
Future value, present value, annuities, net worth, and debt-to-income ratio
FV = PV × (1 + r)ⁿ — How much will your money grow?
PV = FV / (1 + r)ⁿ — What is a future sum worth today?
Calculate future value of regular periodic payments
Assets minus liabilities = your net worth
Debt-to-Income ratio — used by lenders to assess borrowing risk
// Time Value of Money
A dollar today is worth more than a dollar tomorrow due to earning potential. This core principle drives all financial calculations.
// Rule of 72
Divide 72 by your interest rate to estimate years to double your money. At 8%: 72/8 = 9 years. At 12%: 72/12 = 6 years.
// DTI Ratio
Below 36%: Healthy. 36-43%: Acceptable for most lenders. 43-50%: Risky — you may struggle to get approved. Above 50%: Seek debt reduction.
// How to Use Online Financial Calculator
- Enter or paste your source data into the tool input.
- Click the primary action button to run Online Financial Calculator.
- Review the output, then copy or export your result.
// FAQ: What does Online Financial Calculator do?
Online Financial Calculator helps you future value, present value, annuities, net worth, and debt-to-income ratio in your browser with instant results.
// FAQ: How do I use Online Financial Calculator?
Paste or type your input, choose the needed action, and copy the generated output when the result is ready.
// FAQ: Is my data safe when using Online Financial Calculator?
Yes. Processing runs in your browser session for this page, so your content is not uploaded by this tool workflow.
// FAQ: Can I use Online Financial Calculator on mobile devices?
Yes. Online Financial Calculator works on modern mobile browsers, so you can run it from phones and tablets.