📈Investment Calculator Lump sum, monthly, or yearly investment planner — returns, maturity value, schedule and chart. How To Use: Pick lump sum (one-time), monthly (like SIP), or yearly contributions. Enter amount, expected annual return %, and length in months or years. Review total invested, estimated returns, maturity value, and the period-by-period table. Why Use This Tool Free investment calculator with three common modes—same clear layout as our EMI tool, standardized compound-return math, and easy-to-read results.