IMPORTANT! If you don't see menu at left or you don't see numbers in both the Input and Output fields,
CLICK HERE, then CLICK 'Power' button or the button of another desired category.  

Power [force length/second] Input: Btu/hour Btu/minute Btu/second calories/hour calories/minute calories/second foot pounds-force/minute foot pounds-force/second gigawatts [GW] horsepowers (electric) horsepowers (metric) watts [W] joules/hour joules/minute joules/second kilocalories/hour kilocalories/minute kilogram-force meters/hour kilogram-force meters/minute kilowatts [kW] megawatts [MW] Output: Btu/hour Btu/minute Btu/second calories/hour calories/minute calories/second foot pounds-force/minute foot pounds-force/second gigawatts [GW] horsepowers (electric) horsepowers (metric) watts [W] joules/hour joules/minute joules/second kilocalories/hour kilocalories/minute kilogram-force meters/hour kilogram-force meters/minute kilowatts [kW] megawatts [MW]

8,760 hours in 365 days = 525,600 minutes or 31,536,000 seconds 43,200 minutes in 30 days = 2,592,000 seconds 1,440 minutes in 1 day = 86,400 seconds 480 minutes in 8 hours = 28,800 seconds 120 minutes in 2 hours = 7,200 seconds