Hi, I'm looking for the formula to get the velocity value from a drag value. I found plenty of resources to do it the other way around (velocity to drag) but no luck to get it the way I need it. This website seems to have it but they don't provide the rule and they actually want money to enable the calculate button... http://www.lmnoeng.com/Force/DragForce.htm So basically I have the drag force value, the fluid density, area, force and drag coeff., I want to get the velocity from that. For some context, I want to use a force sensing cell with a known area facing water towards the heading direction and get my speed value from the force exerted by the water on the sensing cell. Could anybody help me geopardize the equation to get it right?