Vertical Jump Calculator
This is a nifty little vertical jump calculator designed by Colin "CoolColJ" Chung that I've found quite accurate and reliable. Play around with your bodyweight, squat, and vertical jump numbers to see where you're at.
Standing Vertical Jump Calculator using your Full Olympic Squat and Bodyweight
Standing Vertical Jump Calculator using your High Catch Power Snatch and Bodyweight
Full Olympic Squat needed for Desired Standing Vertical Jump
The basic idea is that for a given squat and bodyweight you SHOULD be able to jump a given height AS LONG AS your movement efficiency in the jump is up to par. If your current squat gives you a vertical jump forecast that is above your actual current jump height you know you need to work on transferring your squat strength into jump explosiveness better, thus you need more actual jump training and perhaps more explosive oriented training. If your VJ is even, or above, the forecasted VJ, you know your jumping efficiency is good, you're transferring your strength into explosiveness well, and should continue driving up your squat.
Note: The calculator works best if you're between 5'6 and 6'0 tall. Shorter folks tend to require slightly heavier squats for a given VJ and taller folks tend to require slightly less.
For custom workouts and templates for either focus check out either my Vertical Jump Development Bible, No Bull Speed Development Manual or browse through the multitude of articles on this site, particularly the following:
Vertical Jump Faq
The Ultimate Split