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Calculate your arrow's Front of Center (FOC) instantly with our free online Arrow FOC Calculator. Boost accuracy and performance in seconds!
If you're into archery, you’ve likely heard about FOC, or Front of Center. It’s a small detail that makes a huge difference in how your arrow flies. Whether you're bowhunting or target shooting, having the right FOC can improve your accuracy, consistency, and penetration.
We’ve developed a free and easy Arrow FOC Calculator so you can quickly and accurately calculate the FOC of any arrow setup. You don’t need to be a math genius just enter a few simple measurements and get your result instantly.
FOC stands for Front of Center, and it shows how far forward your arrow’s balance point is from the center. In simpler words, it tells you how front-heavy your arrow is. A higher FOC means more weight is toward the front of the arrow.
Why does this matter? Because FOC plays a big role in your arrow’s flight stability and penetration. A good FOC can help your arrow fly straighter, especially at long distances, and it also helps with deeper penetration in hunting situations.
The calculation for arrow FOC is straightforward:
FOC (%) = [(Balance Point - (Arrow Length ÷ 2)) ÷ Arrow Length] × 100
Let’s break that down:
This formula gives you a percentage that represents how far forward the arrow is balanced from its midpoint.
Using our FOC calculator arrow tool is super easy:
That’s it! You now know your arrow’s FOC percentage.
Most experts recommend an FOC between 10% and 15% for hunting arrows and 7% to 10% for target arrows. This range gives a nice balance between flight stability and speed.
But don’t worry if your FOC is slightly higher or lower every setup and shooter is different.
Yes, 12% FOC is generally considered a sweet spot for most hunting arrows. It offers good front weight for better flight and penetration, while still maintaining speed. If you’re shooting fixed-blade broadheads, a 12% FOC can help stabilize the arrow better during flight.
Yes, an 18% FOC is very effective, especially for bowhunters using heavy broadheads or arrows designed for deep penetration. It offers better momentum and impact force. However, you might lose some arrow speed. It's a trade-off between speed and penetration.
If you’re serious about arrow performance, knowing your FOC is a must. It’s a simple number that can drastically improve your results in the field or at the range.
Our Arrow FOC Calculator helps you calculate it quickly and accurately, with no guesswork. Whether you're using Gold Tip, Easton, or any other arrow brand, this tool works for all types. Remember, a well-balanced arrow is a confident shot.
Try the calculator now and optimize your setup for more accurate shots and better performance.
Anywhere between 10% and 15% is ideal for hunting. It gives you great flight stability and solid penetration.
Yes, higher FOC means more front-end weight, which can slightly lower speed. But the trade-off is better accuracy and impact.
Yes, a longer arrow can reduce your FOC percentage if the front weight stays the same. Always measure your exact arrow length when calculating.
The calculation method is the same. Easton, Gold Tip, and other brands may just use slightly different tools or layouts, but the formula remains constant.