About CalcForge
A free, fast collection of financial and everyday calculators built for India — no sign-up, no data selling, no lead forms.
CalcForge exists because most Indian finance tools are buried inside aggregator portals that exist to capture your phone number and forward it to banks. Here the calculator is the product: pages load in under two seconds, results update as you type, and every tool shows the formula it used so you can verify the math yourself.
The site is funded entirely by Google AdSense — which is why everything stays free. We do not sell user data, we do not generate leads, and we never lock a feature behind a paywall.
How the tools are built
All calculations run in your browser with plain JavaScript — no server round-trips, no frameworks to download. Income tax pages follow the FY 2026-27 (AY 2027-28) new-regime slab table including the section 87A rebate and 4% cess; loan and investment tools use the standard compound-interest formulas your bank or fund house uses.