how tall are the men in your mothers family? take a rough average between the men in your mothers family and in your dads family, you should expect to grow to around that height.
50th percentile for boys is 164cm at age 14, 170cm at 15, 173.5cm at 16, 175.5cm at 17, 176cm at 18.
So over the the next few years you should grow a fair bit especially in the next 2, make sure your nutrition is good.