Calculate my BF% with these caliper numbers?

[A9]

For wrestling certification, they used fat calipers.

My reading were:
Traps: 10
Triceps: 21
abs: 16

I'm also 15, 5'9 145 lbs, if that matters.

I couldn't find anyway to calculate these measurements to a BF% online so I thought I'd ask if any of you knew how to.

Thanks.

 

[TripLikeIDo]

Looks like you need to have a bicep measurement for this one.

but if you guess using your tricep measurement as your reference, you can adjust the dials to get the values close to the measurements you have.

 

[Ring Shark98]

For greatest accuracy, try to get:

Bicep
Tricep
Calf
Scapula
Hip

 

[modena1983]

90%