Financial Calculator
Compound interest and regular investment calculators. Runs locally in your browser.
Future value
¥22,196.4
Note: This is a simplified calculator and does not include taxes, inflation, fees, or market volatility.
What is Financial Calculator
Three calculators in one page: compound future value (principal × (1+rate)^periods), a recurring-investment projection with monthly/annual frequency and beginning-or-end-of-period timing, and a target solver that tells you how many years a goal takes. Enter your numbers and everything computes locally in the browser.
How to use Financial Calculator
- Pick a tab: compound, regular investing (SIP) or target
- Enter principal, contribution, rate and duration; SIP adds frequency and timing
- Review the projection table and totals
Frequently asked questions
What does the target tab solve?
It works backwards: given a goal amount, current principal, per-period contribution and annual return, it computes how many years you need to reach the target.
Beginning vs end of period — does it matter?
Yes. Contributing at the start of each period earns one extra period of growth per payment: the annuity-due result equals the ordinary-annuity result times (1 + periodic rate).
Are results guaranteed?
No — projections assume a constant rate and are for planning reference, not investment advice.
Is Financial Calculator free?
Financial Calculator is completely free — open the page and use every feature with no hidden charges.
Do I need to download or install Financial Calculator?
No download or installation is needed. It is an online tool that runs in the browser on your phone, tablet and computer.
Do I need an account to use Financial Calculator?
No. Use the tool right away — no account or sign-in required.
Does Financial Calculator work on mobile?
Yes. The page is fully responsive and works on phones, tablets and desktop browsers.