My Math Forum Unit Conversion BTU/Hr to KW

 Physics Physics Forum

 August 21st, 2018, 05:59 AM #1 Newbie   Joined: Apr 2018 From: Braintree MA Posts: 7 Thanks: 0 Unit Conversion BTU/Hr to KW Hi, This looks like an energy question, but it is really a math question. Does anyone have any idea why BTU/Hr is converted to KW, instead of KW/Hr (kWh)? To me, that is like converting Miles Per Hour to Feet. It can't be done. You could convert Miles Per Hour to Feet Per hour. All the conversion calculators online either convert BTU/Hr to KW, or they convert kWh (KW/HR) to BTU. Perplexing. Thanks Last edited by skipjack; August 21st, 2018 at 06:39 AM.
 August 21st, 2018, 06:43 AM #2 Global Moderator   Joined: Dec 2006 Posts: 20,636 Thanks: 2080 The Watt is a unit of power (Joules per second), whereas the BTU is a unit of energy (as is the Joule, for example). Google gives 1 BTU = 1055.05585 Joules. Note that kWh means kilowatt hour, not kilowatt per hour. Thanks from snewonoj
 August 21st, 2018, 07:05 AM #3 Newbie   Joined: Apr 2018 From: Braintree MA Posts: 7 Thanks: 0 Thank you for your answer. I am not sure why I am in Physics Forum and I apologize if I posted to wrong forum. None the less, your answer is perfect. I thought a killowatt hour was the same as killowatts / hour and I appreciate you pointing out that there is a difference. Now I just have to wrap my brain around what the difference is. A KW is a unit of one Killowatt. Is a kWh a different unit or is it the same unit over time? Thank you. Last edited by skipjack; August 21st, 2018 at 04:24 PM.
 August 21st, 2018, 07:17 AM #4 Newbie   Joined: Apr 2018 From: Braintree MA Posts: 7 Thanks: 0 I am reading this great article that I think might help me. It explains that kW is a power measurement and kWH is an energy measurment. It continues on to explain power versus energy as well. The article is here. https://www.energylens.com/articles/kw-and-kwh In short, you have put me on the right track by pointing out that kwh is not kw/hr. Thanks again. Last edited by skipjack; August 21st, 2018 at 04:25 PM.
 August 21st, 2018, 04:33 PM #5 Global Moderator   Joined: Dec 2006 Posts: 20,636 Thanks: 2080 I moved the question to the Physics forum, as physics is about measuring things. Avoid arbitrary capitalization - your "HR" should be "hr", it should be "W" rather than "w", etc.
 August 21st, 2018, 05:17 PM #6 Newbie   Joined: Dec 2016 From: Austin Posts: 16 Thanks: 1 Just because my background is actually Physics: Kilowatt, the "W" is capitalized. So "kW" would be correct. Similar to why a Newton uses a capital "N" for forces, it's to honor the name of the scientist. In this case "James Watt". Also, hours, we normally write "h" and not "hr" for hour. However, technically either is acceptable. We do tend to write "hrs" for hours to avoid prefix confusion if we were to write "hs". Besides that, it looks like everyone has addressed the confusion regarding energy and power. Power is energy over time. Hope that helps!

 Tags btu or hr, conversion, unit

 Thread Tools Display Modes Linear Mode

 Similar Threads Thread Thread Starter Forum Replies Last Post Loren Geometry 4 June 6th, 2018 08:02 PM Denegen Physics 0 May 22nd, 2012 09:57 PM Lpitt56 Algebra 5 February 29th, 2012 06:28 AM daigo Algebra 2 February 4th, 2012 03:46 PM miss_direction Real Analysis 2 May 13th, 2011 08:36 PM

 Contact - Home - Forums - Cryptocurrency Forum - Top