multiply the Circle value by 6.283185307
1 circle = 6.283185307 1/4 rev
Online circle to radian units conversion calculator. Convert circle to degree, gradian, minute, octant, percent of full circle, quadrant, radian, revolution, right angle, second, sextant, sign, thousandth of an inch, turn units. This online units conversion from conventional or traditional units to Si units. Table of conversion factors for circle unit conversion to °, grad, min, 1/8 rev, % rev/angle, 1/4 rev, 1/4 rev, rev, l, sec, 1/6 rev, sign, mil, turn.