Calculators
F&O Calculator.
Contract maths for futures and options — charges, breakeven, payoff and time decay. Numbers first, on a position you are only considering.
What you get
Numbers first.
Charges, in full
What a contract actually costs once every charge is counted, not just the visible one.
Breakeven and payoff
Where the maths turns, and what the shape of the position looks like across the range.
Time decay
What holding costs you as the clock runs — the part that is easy to forget until it has already happened.
What's inside
What it does.
One position at a time
Built for the position you are only considering, not for a book of them. You enter the contract; it does the arithmetic.
What this isn't
No signals, no calls, no buy-this-sell-that, and no view on your position. It is a calculator: it gives you the maths, you decide everything else.
Honest answers
Before you use it.
Does it connect to my broker?
No. Nothing is linked and nothing is placed anywhere. You type in the contract, it returns the maths.
Does it carry market data?
No. You supply the numbers you are working with. The app holds no market data of any kind.
Will it tell me what to buy or sell?
No. Nothing at Efficient Earners does. It works the contract maths and stops there — every decision after that is yours.