For Social Security Disability Insurance (SSDI), the amount you receive will be dependent on how much you have worked/earned in the past. Additionally, you will typically a receive a raise in monthly payments at the start of each new year due to increased cost-of-livings, and in most instances your children under 18 will get benefits separate from your own. On average, workers receive around $800/month.
If you are a disabled widow or widower, the amount you receive from SSDI will depend on how much your late spouse worked/earned.
If you are awarded Disabled Adult Child Benefits, the amount of monthly benefits is based on a percentage of your covered parent’s rate.