Compound Interest Calculator

This is a free, browser-based compound interest calculation tool, no installation or registration required. It can help you quickly calculate the growth trend of investment assets over time, suitable for personal financial planning, fixed deposit income estimation, fund fixed investment return calculation and other scenarios, fully optimized for ordinary users to use.

It is applicable to the calculation of returns of fixed-income financial products such as time deposit, large-denomination certificate of deposit, fund fixed investment, pension savings plan, children's education fund planning, and long-term venture capital accumulation, helping you clearly understand the effect of long-term investment compounding.

This tool is set by default to calculate the funds invested in the current year at the beginning of the year, which conforms to the habit of most ordinary users to make regular and fixed investments.

The current version uses a fixed annual interest rate for calculation, which is suitable for income estimation of fixed-income products. If you invest in floating income products such as stock funds, you can fill in the historical average annual return rate as a parameter for approximate reference calculation.

All calculation logic of this tool runs locally in your browser, and all the financial data you enter will not be uploaded to any server, nor will it be stored or shared with third parties, fully protecting your personal financial privacy.

You can fill in the actual annual contribution amount, the expected average annual return rate of the investment product and the actual investment duration as accurately as possible. For long-term investment, it is recommended that you recalculate regularly according to the actual return situation to adjust your financial plan.