Launch straight up from the surface and see where the projectile stops. The gold column is the apogee, on a single scale of distance from the centre in radii of the body. Escape velocity is a threshold: half of it buys a third of a radius, 70.7 % of it (the speed of a circular orbit skimming the surface) buys exactly one radius, and at 100 % the apogee runs away to infinity. v_esc = sqrt(2·G·M / r) — the mass of the thing you launch never appears.