The calculated distance (air line) between La Bélgica and San Ignacio de Velasco is approximately 169 miles respectively 273 kilometers.
By car or train, the actual journey to San Ignacio de Velasco is certainly longer, as only the direct route (as the crow flies) between La Bélgica and San Ignacio de Velasco has been calculated here.
Air line (approximately)
273 kilometers
147 nautical miles