AnimationClip.length

Description

Animation length in seconds. (Read Only)

var anim: Animation;

function Start() {
    anim = GetComponent.<Animation>();

    anim.Play();

    // Wait for the animation to finish.
    yield WaitForSeconds(anim.clip.length);
}

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    public Animation anim;
    IEnumerator Start() {
        anim = GetComponent<Animation>();
        anim.Play();
        yield return new WaitForSeconds(anim.clip.length);
    }
}