How do I set the jump distance and height to my player?

I made my player able to jump for a platformer I am making, but he jumps like he is on the moon. I can't figure out how to make him jump a certain height and distance.

Here is my code:

using UnityEngine; using System.Collections;

public class playerScript : MonoBehaviour { public bool grounded = true; public float jumpPower = 190;

     private bool hasJumped = false;
 
 // Use this for initialization
 void Start () {
 }
 
 // Update is called once per frame
 void Update () {
     // Do something
     
     if(!grounded && GetComponent<Rigidbody2D>().velocity.y == 0) {
         grounded = true;
     }
     if (Input.GetKey(KeyCode.Space) && grounded == true) {
         hasJumped = true;
     }
 }
 
 void FixedUpdate (){
     if(hasJumped){
         GetComponent<Rigidbody2D>().AddForce(transform.up*jumpPower);
         grounded = false;
         hasJumped = false;
     }
 }

}