## Comment on Theta

Yes I have used this calculator but it just provides the final calculation… I want to know how is the time value calculated (formula). Like if spot Nifty is 11010 so i can be sure that delta of CE 11000 will be around .53

So what will be the theta of an option if there are 5,10 or 15 days to expiry? Is there a formula to calculate that ??