A workplace injury resulting in an amputation most likely qualifies you for workers' compensation. The amount you receive depends on the state in which you work, as well as which appendage/appendages were lost. According to ProPublica, New Jersey workers' compensation benefits pays higher than the national average for several limbs, but some are valued at a lower than average amount.
The amount paid depends on what is known as a schedule of disabilities, which details the maximum amount of money offered per limb. This is calculated based on a combination of what is lost, as well as the percentage of disability that results from the lost limb. For example, if you were to lose a finger but still be able to perform the majority of your job, then you would not be entitled to as much workers' compensation money as you would if the loss of the finger severely limited your ability to work.