Here's a screen shot of 2 concentric circles at 50NM and 100NM around KPHL using skyvector.
View attachment 74228
I'll even be nice and provide the waypoints used for the first circle:
KPHL360050
KPHL010050
KPHL020050
KPHL030050
KPHL040050
KPHL050050
KPHL060050
KPHL070050
KPHL080050
KPHL090050
KPHL100050
KPHL110050
KPHL120050
KPHL130050
KPHL140050
KPHL150050
KPHL160050
KPHL170050
KPHL180050
KPHL190050
KPHL200050
KPHL210050
KPHL220050
KPHL230050
KPHL240050
KPHL250050
KPHL260050
KPHL270050
KPHL280050
KPHL290050
KPHL300050
KPHL310050
KPHL320050
KPHL330050
KPHL340050
KPHL350050
KPHL360050
Modify your way point and distance to your hearts content.