For example, someone with a weight or mass of 80kg with a sustainable power output of 280 watts will have a power to weight ratio of 3. Both sievert per second and watt per kg are radiation measurement units. Determine your maximum power output in watts and powertoweight ratio. Effortlessly compute speed or power for all important parameters, such as weight, grade, position and tire type. On the power tap, work is measured as the force exerted on the rear hub times the distance traveled by the hub work force x distance while power is simply the total work divided by time and expressed as a watt or joule per second power work time force x distance time watt since a given distance divided by time is essentially. Its now possible to see your power as watts per a kilogram on the power curve. This provides a relatively accurate indication and point of comparison, by which you can measure your training progress. Youll first want to add your weight, and then you can click on the w kg button at the top right of the graph and the values are shown as watts per a kilogram.
As more and more data inundates cycling, and more riders have access to individualized data, it has become more important to know what exactly to focus on. In the mks system, the unit of power is the joule per second js, known as the watt. Convert kgf md to w kilogram metre per day to watts. Estimate a riders watts per kilogram wkg this tool helps you measure up the competitions watts per kg. Im trying to work out which motors to buy for my 1. This doesnt yet support different weights over time, so old powers wont be shown. Watt hours per kilogram kg 600 ah 24 volt battery discharge rate watt hrs discharged weight kg wh kg 20 hour rate 16,708.
One watthour per kilogram is equal to 3,600 joules per kilogram typical values. Estimate a riders watts per kilogram wkg spinloose. Samsungs flagship smartphone, galaxy note8, comes close at number two, emitting only 0. Between kgf ms and w measurements conversion chart page. Your ftp estimate appears as a value measured in watts per kilogram, your power output in watts, and a position on the color gauge. Youll first want to add your weight, and then you can click on the wkg button at the top right of the graph and the values are shown as watts per a kilogram. Electricity bill calculator energy cost calculator. While theres no denying that maximum power and threshold are important, wkg should be a primary metric on most riders dashboards.
Using the computrainer indoor ergometer to improve your performance wharton, richard, neff phd, dr robert s, smith rd, heidi, smeulders phd, dr. Wattsperkilo wkg is a riders power output for a given effort divided by their weight. In reality, the average power may have been up to 10% higher if the crew rowed at different speeds in different parts of the race. Jun 14, 2012 wattskg on the power curve 14 june, 2012 by david johnstone. Heart rate beats per minute hr zone low end zone high end zone 1 active recovery. Joule per kilogram per kelvin jkgk has a dimension of l 2 t2 q1 where l is length, t is time, and q is temperatur. If you use rechargeable batteries then this app is for you. This value is measured at cycling or with a bicycle ergometer, to compare the. While terms such as functional threshold power, intensity factor, training stress score and others often take over the. You can measure power in watts on an erg or, with the right equipment, in a boat. Welcome to the oldest and most popular bicycle performance prediction calculator on the web since 1997. The batteries that tesla uses in their electric cars have about 254 w. Convert watt to kilogramforce metersecond conversion of. You could also just see what wattkg are required to achieve a personal target on your local hill.
This app is available only on the app store for iphone and ipad. All you need is the hill climb result sheet and the hills length and height gain. Type in your own numbers in the form to convert the units. Watts per kilogram, often abbreviated wkg is a measure of power to weight. Simple power to weight calculator calculates race category and watts to speed as well as power to weight. Using the computrainer indoor ergometer to improve your performance. Rower power per kilogram model validation a model of. Power to weight calculator explained before reading below try at least once the free online power to weight calculator which automatically calculates your power to weight, speed per watts, and race category based on power. The standards for racing cyclists are also divided into different categories. Convert kgf ms to w kilogram metre per second to watts. Then you weigh the rower on a set of scales and you have watts per kilogram. For example my watts per killogram at 5s is dispalyaing as 33. Watts kg on the power curve 14 june, 2012 by david johnstone. Bosch claims they will commercialize 400 watt hour per.
The sar describes the potential for heating of the patients tissue due to the application of the rf energy necessary to produce the mr signal. Convert watt to kilogramforce metersecond conversion. The other way around, how many watts w are in one kilogram metre per day kgf md unit. For example, an 80kg rider with a maximum sustainable power output of 280 watts has a powertoweight ratio of 3. Watts per kilogram high quality training programs for endurance athletes of all levels our coaching style is highly personalized and datadriven with the ultimate goal of unleashing full potential on race day. Calculate from power into other power unit measures.
Cycling power to weight ratio calculator data cranker. Energy density calculations discharge rate watt hrs. The highest power to weight ratio measured in competition was produced by the former italian cyclingsport pro marco pantani who conquered the legendary ascent of lalpe dhuez in 1997 with 7. Convert 1 kgf ms into watt and kilograms force metersecond to w. Enter a value in watts and click on calculate to get the dbm value. Online radioactive decay calculator that allows you to find out the radioactivity decay in plutonium pu 239. Dec 18, 2017 and thats why we look at power not just as an absolute number, but as one relative to a riders weight. Ftp is measured in terms of power output recorded by your bikes power meter and is expressed in terms of watts per kilogram and total watts.
Convert 1 kgf md into watt and kilograms force meterday to w. Give us a call or send us an email for more information. Jan 11, 2016 rider categorization for racing on zwift breaks down differently, although this may change when zwift rolls out their racing features. Currently the most popular categorization scheme for zwift races is as follows. Convert kgmhr to watt conversion of measurement units. Hawk high watts per kilogram series of solar arrays. The maximum diameter of the twin brushless motors will have to be 28mm due to space restriction and propshaft angle.
The model was used to estimate the average power per average crew member assuming a flat race. Between kgf md and w measurements conversion chart page. Envia systemss new lithiumion battery packs roughly twice as much energy per gram. Sar the specific absorption rate is defined as the rf power absorbed per unit of mass of an object, and is measured in watts per kilogram wkg.
But what does it actually mean, and how do you calculate yours. Take a look at the table below to see where you line up. Make up some numbers, doesnt matter, wont hurt a thing. The electricity cost per day in dollars is equal to the energy consumption e in kwh per day times the energy cost.
Joule per kilogram per kelvin jkgk is a unit in the category of specific heat. Use this page to learn how to convert between kilogramforce metershour and watts. Diferent power units conversion from kilogram metre per second to watts. Vo2 is measured as the uptake of milliliters of oxygen per kilogram of body weight per minute. You hear so many cyclists talking about their watts per kilogram ratios. The level sonny wu, bostonpowers ceo, says the company is achieving today 250 watthours per kilogram. Here is a list of appliances with their power in watts and their consumption in kwh kilowatt hours kwh a kilowatt hour kwh is a unit of measurement of energy. Watts per kilogram, or wkg, is a basic power toweight ratio measurement. Power output to weight watts per kg at lactate threshold. Oct 10, 2008 for example, while vo2max declines by 0.
Download db calculator and enjoy it on your iphone, ipad, and ipod touch. Only part of the story is told by watts whether on. One watthour per kilogram is equal to 3,600 joules per kilogram. Watts per kilogram on critical power chart is incorrect. Using the measure of vam vertical meters climbed per hour, di luca hit 1,780 vam in 2007 up tre cime, while nibali posted 1,533 vam up tre cime with 5. How to calculate your critical power to use the model based on monods model you need to know your weight in kg, the test duration in seconds longer than 3 min shorter than 30 min and average watts which is converted into joules of work per kilogram for each of the tests completed. Watts per kilo is your max power output, in watts, divided by your weight in kilos. Plutonium pu 239 radioactive isotope decay calculator.
Use current calculator page to convert radiation from sievert per second to watt per kg. The energy e in kilowatthours kwh per day is equal to the power p in watts w times number of usage hours per day t divided by watts per kilowatt. This gives a useful measurement to compare riders of different abilities and weights. It is equal to the energy expended or work done in applying a force of one newton through a distance of one metre 1 newton metre or nm, or in passing an electric current of one ampere through a resistance of one ohm for one second. It is the equal power value of 1 kilogram metre per second but in the watts power unit alternative. However tracking your watts per kilogram wkg may produce the biggest results. Similarly it allows you to find effective training intensities and to identify the heart ratebased training zones that reflect your own personal physiology. Diferent power units conversion from kilogram metre per day to watts. Coach taylor thomas outlines why wkg is so important and how you can improve it. What constitutes a good power to weight ratio changes based on the length of the effort, so be sure to check different efforts 5s, 1 min, 1 hour to see how you stack up against other cycling categories. Discover a universal assistant for all of your unit conversion needs download the free demo version right away. Watts per kilogram athletes have repeatedly expressed their gratitude and satisfaction with our training philosophies and programs and keep coming back for more.
Calculate the power per mass in watts per kilograms or pounds body weight. The importance of watts per kilogram gran fondo guide. Efficiency is output relative to input, watts per kilogram is, well, watts per kilogram. Wattskg on the power curve 14 june, 2012 by david johnstone. Download radiation unit converter our powerful software utility that helps you make easy conversion between more than 2,100 various units of measure in more than 70 categories. And thats why we look at power not just as an absolute number, but as one relative to a riders weight. In a rowing sense, to measure watts per kilogram is easy.
The importance of watts per kilogram with the availability of power based training readily accessible to so many cyclists these days its becoming more and more important to understand what metrics one should focus on. The level tesla and panasonic were achieving in 2008 for the roadster 200 watthours per kilogram. Aug 16, 2016 however tracking your watts per kilogram wkg may produce the biggest results. The average untrained healthy male has a vo2 max of approximately 3540 mlkg. It takes the amount of power you produce at various time periods and divides it by how heavy you are.
The other way around, how many watts w are in one kilogram metre per second kgf ms unit. British cycling is suitable for all levels and actively encourages all to get involved. Designed with lithiumpolymer lipo batteries in mind but any rechargeable battery including nicd, nimh and life batteries can be calculated if you know the voltage. New energydense battery could enable longdistance electric cars. The calculation of radioactivity in minerals is based on certain assumptions. The joule symbol j, is a derived unit of energy, work, or amount of heat in the is of units.
P is defined as the amount of energy consumed per unit time. Why you should focus on watts per kilogram trainingpeaks. Jul 23, 2012 on the power tap, work is measured as the force exerted on the rear hub times the distance traveled by the hub work force x distance while power is simply the total work divided by time and expressed as a watt or joule per second power work time force x distance time watt since a given distance divided by time is essentially. To work out your powertoweight ratio figure, simply divide your power output in watts by your weight in kilograms kg. The approximate energy density of the batteries in the tesla s.
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