<p>Again, that depends on schools.</p>
<p>At Northwestern, 1 class = 1 credit in most cases; some music instrument classes are 0.5-credit. Orgo + lab = ONE credit depsite how it feels like it worths at least 2 classes!!! The orgo lab is incorprated into the orgo credit. Most science/engineering classes meet 3x/week. Languages classes meet more often but it’s still one-unit. Life isn’t fair. :D</p>
<p>At Stanford, most count 3-4 units but some are 5-unit or 2-unit.</p>