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10. 14.62 in3 to square centimetres 11. 5500 cm3 to cubic yards 12. 3.5 mph (miles per hour) to feet per second 13. 185 yd per min. to miles per hour 14. 153 ft/s (feet per second) to miles per hour 15. 248 mph to metres per second 16. 186,000 mph to kilometres per year 17. 7.50 tons/yd2 to pounds per square inch 18. 16 ft/s2 to kilometres per hour squared 1. 7 miles to yards 2. 234 oz to tons 3. 11.2 mg to grams 4. 1.35 km to centimetres 5. 9,800,000 mm to miles 6. 4.5 ft2 to square yards 7. 435,000 m2 to square kilometres 8. 8 km2 to square feet 9. 0.0065 km3 to cubic metres