Of the 220 coturnix eggs I was sent, I'm guessing a hatch of 150. I am absolutely thrilled with my chicks! I ended up with approx 190 eggs to hatch. We aren't quite done, but will be soon. Its the end of day 18. They've been hatching like crazy for two days. Its almost overwhelming to see the squirming mass of chicks. They are consuming everything in their path, including toes and miscellaneous body parts! What a fun experience this has been!