Calculator defaults
Set your bow and arrow once. Every calculator on this site will open with these numbers.Create a free TitleX account to save your setup and open calculators with your numbers on any device.
Sign in or create a free account to save your calculator defaults. You can still use every calculator without saving.
Label
Bow
Draw weight at your draw length, IBO rating, and string weight feed the kinetic energy calculator.
Arrow
Tip type
Shaft diameter
Fletch count
Spine calculator
Release type
Use
Sight tape
Tick spacing
Tick marks
Yardage text
Draw length & FOC (optional)
Leave blank if you only use the spine and energy tools.
FOC measure from
Saving requires a free TitleX account. Calculators stay free to use without an account.Back to arrow calculators.
How it works
Enter the numbers you use most often — draw weight at your length, IBO rating, finished arrow weight, and the rest. When you open kinetic energy, spine, arrow flight, FOC, or draw length, those fields start with your saved values.
Defaults are saved when you sign in with a free TitleX account. Your numbers are stored on the device you use while signed in. If you clear site data or switch browsers, sign in again and re-save, or we may add full cloud sync later.
Links from the kinetic energy calculator with ?fps= still override speed for flight when you follow them directly.
Related: arrow calculators, kinetic energy calculator.