An inflation calculator is an online financial tool that adjusts a monetary value for the effect of inflation over time — showing either how much a past rupee amount is worth in today's prices, or how much money will be needed in the future to match the purchasing power of a given amount today. It uses the formula: Future Value = Present Value × (1 + Inflation Rate)^Number of Years. In India, where CPI inflation has historically averaged 5% to 7% per annum, the inflation calculator vividly demonstrates the erosion of purchasing power over long periods — ₹1 lakh today will purchase goods worth only approximately ₹74,000 in ten years at 3% inflation, or only ₹54,000 at 6% inflation. For retirement planning, the inflation calculator is indispensable — it helps investors understand how much larger their retirement corpus needs to be than their current lifestyle expenses suggest, after accounting for decades of price inflation. Ventura's inflation calculator helps investors quantify the real return on their investments — if a fixed deposit earns 7% and inflation is 6%, the real return is only approximately 1%, highlighting why equity investments with long-term real returns of 8% to 10% are essential for meaningful wealth creation that outpaces the relentless erosion of purchasing power over an investor's lifetime.