The age of your kitten is unique, so there’s no way to know exactly how old they are. But you can estimate their approximate birthday. To do this, simply multiply the number of months since your kitten was born by 7 for a total estimation of years! For instance if it has been 2 months since your kitten was born then its 14 years old (2 x 7 = 14). This method works well with kittens over 4 months but not with those under that age as their growth rate isn’t very consistent until they are around 6 months or older.