The calculated distance (air line) between Ince-in-Makerfield and Birkenhead is approximately 19 miles respectively 31 kilometers.
By car or train, the actual journey to Birkenhead is certainly longer, as only the direct route (as the crow flies) between Ince-in-Makerfield and Birkenhead has been calculated here.
Air line (approximately)
31 kilometers
17 nautical miles