If you make $1,000 a week, the amount of child support you pay depends on the number of children you are supporting and the jurisdiction, but here are some general guidelines:

• In Florida, rough estimates suggest:
  • One child: about $200 per week
  • Two children: about $250 per week
  • Three children: about $300 per week
  • Four children: about $350 per week
  • Five children: about $400 per week
  • Six or more children: no less than the amount for five children

• In the UK, for gross weekly income of £200 or more (up to £800), the Child Maintenance Service applies these percentages of your gross weekly income:
  • One child: 12%
  • Two children: 16%
  • Three or more children: 19%

• In other US states like California or New York, child support calculations vary based on specific state guidelines and factors such as custody arrangements, but a typical figure for one child might be around $250 per month on $1,000 weekly income, though this varies by state and case specifics

To get an accurate figure tailored to your situation, including custody arrangements and other factors, you should use a child support calculator specific to your state or country or consult with a family law professional.