The calculated distance (air line) between The Netherlands and Belgium is approximately 118 miles respectively 190 kilometers.
By car or train, the actual journey to Belgium is certainly longer, as only the direct route (as the crow flies) between The Netherlands and Belgium has been calculated here.
The center of the country is used to calculate the distance. For a more precise determination of the distance, please use one (or better yet two) cities for the distance calculation.
Air line (approximately)
190 kilometers
102 nautical miles