I assume your circle is not on the Y axis. So for the radius you must enter a relative coordinate for the point on the circle.

When the center is set, enter

**@.3125,0** or

**@0,.3125** or

**@.3125<45**.

The last one means move .3125 relative to the center at an angle of 45° and this would work with any angle for a circle.

You can even enter formulas for coordinates, e.g. use the diameter and avoid to miscalculate the radius

**@.625/2<45**Another option is to use the Circle/Radius tool. With this tool you have to enter the radius in the appearing field of the tool option bar (above the drawing area).

Even there you can enter

**.625/2** for the radius.

This tool is handy when you have to draw many circles with same radius.

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