ALOT of factors will affect that.
-Your pressure on the pump
-The engine rev speed
-Your walking speed when you spray.
-If it's windy or not.
Some driveways I do is just a quick seal from customers who do it every year so I don't need to spray a lot. Older driveways that haven't been seal in a quiet a while, I will spray it a bit quicker.
800sq/f in Ottawa, no cracks, I would charge 220$ for that and it would cost me around 30-60$ in sealer.
The coverage is around 30sq/f per liter
Gauvreau Property Maintenance
Commercial & Residential asphalt services
Interlock & Landscape
Complete lawn care services