How This Calculator Works
This tool uses a greedy algorithm — starting from the largest denomination (₹500) down to the smallest (₹1) — to find the minimum number of notes and coins needed to make up your total amount, using standard Indian currency denominations: ₹500, ₹200, ₹100, ₹50, ₹20, ₹10, ₹5, ₹2, and ₹1.
Why the Greedy Method Works Here
For India's specific set of denominations, the greedy approach (always using the largest denomination possible at each step) happens to produce the mathematically minimum total number of notes/coins — this isn't true for every possible denomination system, but it works correctly for the standard Indian currency set.
Practical Uses
- Cash till reconciliation and preparing exact change for a business
- Planning salary or wage disbursement in physical cash
- ATM cash loading and denomination planning