Use the calculator below to work out your air gun's foot-pound power.
Just input your pellet weight and muzzle velocity (ft/sec).
The legal muzzle-energy limit for air rifles is 12ft.lb and for pistols, 6ft.lb. You do not require any form of licence for sub legal-limit airguns in England or Wales. For rifles producing more than 12ft.lb, a Firearms Certificate (FAC) is required. Air pistols that produce more than 6ft.lb are prohibited.
Using our professional chronograph, we can provide you with a set of accurate (99.5%) fps results and an overall average ft/lb for any airgun. We ensure we have sufficient light levels to give you incredibly accurate results. If you feel your airgun is not performing as it should, feel free to pop in store and we can chronogrpah your rifle for a VAT inclusive charge of £10.00.
Please allow us up to 72 hours as the process can be weather dependant. We rely on sufficient light levels and good weather to obtain our figures.
Depending on your browser, you may need to refresh the page to make multiple calculations.