Financial Calculator (TVM)
Solve any one of PV, FV, PMT, I/Y or N given the others. Perfect for loans, savings and bonds.
What this calculator does
The time-value-of-money (TVM) calculator is the swiss-army knife of finance. Every loan, every SIP, every bond, every rent-vs-buy decision — they all boil down to five variables: present value, future value, payment per period, interest rate, and number of periods.
The idea is simple: ₹100 today is worth more than ₹100 next year, because today's ₹100 can be invested. This calculator lets you plug in any four of the five variables and solves for the missing one.
For example: 'If I save ₹5,000 a month at 10% for 15 years, how much will I have?' → set PMT = 5000, I/Y = 10, N = 180 months, PV = 0, solve for FV. Or: 'I want ₹20 lakh in 5 years, what monthly SIP gets me there at 11%?' → set FV = 2000000, I/Y = 11, N = 60, PV = 0, solve for PMT. Once you internalise this tool, most other finance calculators feel like specific presets of it.
FV = PV × (1+r)^n + PMT × [((1+r)^n − 1) / r]How to read your projection like an adult
Every investment calculator has one built-in lie: the return rate is an assumption, not a promise. If you use 12% for Indian equity mutual funds, that's a rough long-term average — not what your specific SIP will do next year. Markets are lumpy. The projection is a compass, not a GPS.
Run three scenarios: pessimistic (say 8%), realistic (10-11%), and optimistic (13%). If the pessimistic case still gets you close to your goal, you have a robust plan. If only the optimistic case works, you're one bad market cycle away from disappointment — increase your contribution, extend your timeline, or lower the goal.
Also, watch inflation. ₹1 crore in 2046 will buy roughly what ₹30 lakh buys today (at ~6% inflation). The number that looks huge on a projection is smaller in real purchasing power.
Don't stop contributing when the market falls. That's mathematically the worst time to stop. The whole point of a SIP is that you buy more units when prices are low.
Frequently asked questions
Which variable is most sensitive?+
The interest rate and time — both compound. A 2% rate change over 20 years can double or halve the FV.
Reminder: this calculator is a learning tool, not personalised advice. For decisions involving your actual money, talk to a SEBI-registered adviser about your specific situation.