Consulting rates vary depending on the location/region of the consultant.
Here are the tier slabs for your reference:
Tier 1: These are consultants from the US, Canada, UK, Australia, Mainland Europe, and charge between $100 - $350 per hour.
Tier 2: These are consultants from the Asia Pacific, Africa, the Middle East, and charge from $70 - $200 per hour.
Tier 3: These are consultants from the Indian subcontinent and charge between $35 and $100 per hour.