The following table converts a benchmark rating for distance to a speed (miles/kilometers per hour). Round off to the nearest 10 or 100 if desired.

	Rating			MPH			KPH
	1			2			4
	2			4			7
	3			7			11
	4			17			27
	5			22			36
	6			45			72
	7			67			108
	8			112			180
	9			167			270
	10			223			360
	11			670			1,080
	12			1,116			1,800
	13			2,232			3,600
	14			5,580			9,000
	15			11,160			18,000
	16			22,320			36,000
	17			111,600			180,000
	18			223,200			360,000
	19			1,116,000			1,800,000
	20			2,232,000			3,600,000
	21			22,320,000			36,000,000
	22			223,200,000			360,000,000
	23			223,200,000,000			360,000,000,000