The calculations take frictional losses (tyres, bearings, chain), air drag and energy to climb a gradient into account when calculating power … For example, you can find out how much power you can save when switching from knobby to slick tires. Walter Zorn's Kreuzotter Bicycle Speed and Power Calculator. I want to make an electric bike. Using Bike Calculator, that puts a rider’s speed around 10-12 mph. Zone Calculator Training by a zone will help you focus more on your workout then on your heart rate or power values. The heavier you and your bike are, the more energy you must spend to overcome gravity. Bicycle gear size and cadence/speed calculator Wheel size: 20" 24" 26" 700C 27" 650B 29" + tyre dia. This is actually an "engineering model" that knows the relationships between power, speed, and the three major forces: gravity, wind resistance and rolling resistance. The air pressure is calculated using the barometric elevation formula. Check out the iPhone version of this calculator. With its help, you can explore the relationship between the power you produce and various parameters such as speed, biking position, hill slope, or pavement type. The sum of these three portions of power results in the total power. It is only valid for dry air and changes with increasing humidity. Accept cookies. Do not create enemies. Functional Threshold Power (FTP): You can estimate FTP with from your best recent 20-minute power value (either from a dedicated 20-minute test or a sufficiently hard 20-minute effort from a race or workout). The default values can be used for a road cyclist on the hoods. Effortlessly compute speed or power for all important parameters, such as weight, grade, position and tire type. It can be used to compare different setups to find the optimal gearing for all kinds of bicycles. One allows numeric entries for all parameters instead of menu picks. © 2012 Curt Austin, all rights reserved. ... Bike weight: kg: kg: Tire type Retrieved 19 October 2019, \( slope_{decimal} = k = \frac{slope_{\%}}{100} \), \( P_{air} = \frac{1}{2} \cdot c_{w} \cdot A \cdot \rho \cdot v^3 \), \( P_{roll} = F_{roll} \cdot v = m \cdot g \cdot \mu_{R} \cdot v \), \( v_{climb} = \frac{k \cdot v}{\sqrt{1+k^2}} \), \( P_{climb} = m \cdot g \cdot v_{climb} \), \( P_{total} = P_{air} + P_{roll} + P_{climb} \), \( R_{S} = 287,058 \frac{J}{kg \cdot K} \), \( p = p_{0} \cdot (1 - \frac{6,5 \cdot h}{288000})^{5.256} \). Type of Riding anticipated – minimal assist, typical assist, or power-hungry. The overall weight is 300kg. The selection of internal-gear hubs in the Calculator is complete except for one a few new models whose gear ratios have not been made public, and some very rare antiques. Athletes can produce figures much higher than this. The computational cyclist. Or use the handy slider to change both at the same time (may not work with some browsers). Carry a good tube. APPS. This calculator is based on the theory of the Secret of Cycling. Calculator allows to estimate the power of the engine and the electric bike battery capacity to achieve the assumed speed and range. The result is automatically used for the calculation of power in the above calculator. Many workout devices allow you to set your zones, and display that with or without your heart rate/wattage values. A figure of two watts (of power) per Kg of body weight is often quoted as a maximum sustainable power for a fit person. Training Nutrition Adjust the weekplan Training Zones Statistics Ask an Expert. Important numbers for such a battery are the voltage in volts (V), the electric charge in ampere hours (Ah) and the electric energy in watt hours (Wh). Most cyclists use their FTP for their power input to calculate their PWR for an hour (or a standard criterium). The calculator is composed of three parts. on temperature and altitude. Typical Trip Distance; This calculator can be used to estimate the battery pack size for a DIY electric bike kit, based on the type of riding and the typical distance traveled. The necessary power to overcome air resistance and rolling resistance can be calculated using the following formulas. The Power to Weight Ratio (PWR) is the standard that most cyclists use to measure their fitness and improvement. About the C d A calculator. Bike Calculator. Burke, Leisure Press, 1986, pg 126. Rider Course Power and Climb Rate; Marco Pantani (123lb/16lb) Alpe d'Huez 8.6 miles, 7.89% grade: 371W = 300 + 3 + 70 5709 ft/hr, 13.681 mph: Jan Ullrich The dyno is able to measure and record actual power Output (Watts). the apparel and the position on the bike. Aerobar, Other Predictions: Bike Speed and Power Calculator Calculate Speed and Power. An e-bike, electric bicycle or pedelec is a bicycle with an electric auxiliary motor, which gets its energy from a rechargeable battery. Assumptions: Constant speed analysis Bike weight = 22 lb Drag coefficients reference "Science of Cycling", E.R. (1998) along with the CdA estimation model & equipment testing of Bassett et al. The first part is about your human engine (your power and weight) and the parameters who determine this (like training). The friction coefficient for a mountain bike is higher thant the preset value. If the motor output power and human power exceeds the load power of the vehicle, it will accelerate. Using our math and physics engine we will output the best possible power based plan to allow you to have the fastest bike split possible given the course conditions and any power … Things you can power/charge. The following numeric values equation uses the altitude \( h \) in metres and I'd like to convert: miles km yds m: to: miles km yds m: Result: Calculate Pace and Speed based on Distance and Time. It is easily calculated by dividing your weight (in kilograms) by your average power output (in watts). Advantage Meter iPhone Android. Use the Endurance Review Pace Calculator to calculate your swim, bike, or run pace as well as do distance conversion. How The Peloton Bike Calculates Power Output (Watts) Before delivery, Peloton Bikes are affixed to a dynamometer (“dyno”) — used to measure torque on a drivetrain. All values can The air density \( \rho \) can be calculated with the temperature \( T \) and the air pressure \( p \). The preset value is used for 20 °C at sea level. It shows how much power (watts) cyclist can continuously produce in one hour. Bicycle Power Calculator . The calculator is based on the power model of Martin et al. Calculate Air Density. Since one has to make quite a few assumptions under which this Calculator works maybe the name "C d A Estimator" would be more suitable - but who would Google this Keywords ;-).. To name the most important assumptions: flat course and no head or tailwind. To compare the power with people of different body weight objectively, this power This cycling wattage calculator is a tool designed for all cycling passionates. Otherwise, use this calculator to identify your individual intensity zones. How does the wattage calculator work? Air density can be calculated with the following calculator. For example, you might want to compare riders with different heights at identical BMI … 0 20 mm 23 25 28 32 35 38 44 50 56 1.00 in. be freely changed. (1999). Multiply that value by 95% to get your FTP. Bartops Also see Electronic Cycle Ergometer Calculator. Hoods You can also enter values for time, energy expenditure, or weight loss - your ride distance will be adjusted to match. Amongst the many things he created was an excellent speed and power calculator which many people have credited as being quite accurate. Bartek. iPhone 6 – The iPhone battery stores about 5 watt-hours of power, so you could theoretically charge it in 6 minutes. Races & Goals Weight Management Fitness tests. If the motor power is less, it will decelerate. Some of the old calculators are still around - see the "Old Stuff" menu item above. Accurate requirements: steady state submaximal aerobic exercise ; cycle ergometer must be properly calibrated You can also estimate FTP from a recent best 45-60 minute power output. Power Calculator. By clicking "accept cookies" you consent to the use of cookies on this website. Take two cyclists: Cyclist A can sustain a maximum power output of 250W while Cyclist B can only manage 225W. Retrieved 19 October 2019, Desnity of air, Training with power has been proven again and again to be the most efficient way to improve your cycling performance. This results in a relative Power with the unit W/kg. The result is automatically used for... Formulas. Our cycling wattage calculator can never be as accurate as a measuring system installed directly onto a bike, but the values provide acceptable approximations. By using our simple calculator, you can instantly calculate your cycling power zones! Plans. How many kilometres do the different Bosch eBike batteries last? The air pressure itself is dependend on the altitude \( h \). Leaderboards. With the values from this BMI-Calculator you can check how much a change of body weight or height (or both) would influence the bicycle speed or the required propulsion power. It is easy to check the existing level of FTP, using a power meter, but It was interesting to know, what is maximum hour power output. The product of \( c_{W} \) and front face depends on the bike, Power-to-weight ratio matters because it’s a great predictor of performance. However, for it to be successful, you need to be aware of your various power zones and what each zone means for your training. I found the solution how to determine and created the calculator, which help identify FTP depending on gender, age and weight. One allows you to enter parameters for five ride segments. If you have one of our convenient 80/20 Endurance electronic plans, your custom training zones are auto-calculated directly within each workout and this calculator is not necessary. Not related to cycling, but I wish you have a calculator for computing Calories Burnt doing YOGS, in particular SUN SALUTATIONS (DN) at various speeds.. 30s/SN,12min/SN & 2min/SN.. 😊 Thank You, [7] 2020/10/20 05:14 Male / 20 years old level / An engineer / Very / This calculator can be used with ergometers with mechanical resistance settings, or ergometers that do not electronically alter resistance to compensate for cycling speed. The pulse can also be affected by many different factors, while the power output can give an indication of the actual training stress. All values for the calculation need to be in SI-units. Welcome to the oldest and most popular bicycle performance prediction calculator on the web - since 1997. Maybe the name C d A Calculator is a little bit misleading. 13” MacBook Pro – This new Apple laptop requires 60 watts to charge & run, so at 50 watts the power would almost be enough. The power of bldc motor is 2.5kw with 48v 50ah lithium ion battery pack. Use the electric bicycle calculators to calculate the weight, speed and range of different electric bicycles with various configuration and components. The more aero the position is, which means you try to hide from the wind, the lower this value is and If you have any trouble or have suggestions, let me know: curt@bikecalculator.com. The bicycle gear calculator displays graphically the gearing of derailleur gears and gear hubs. The Bosch Range Assistant displays how many kilometres your pedelec can travel on a single battery charge. Simulator Power calculator Spoke length calculator Download Drives Companies. Bar ends First, speed and slope needs to be converted into SI units. Drops You can choose metric or U.S. units. Colors group similar values. More information 20+ is green, 10ish-20, blue, and below 10, red. I covered this distance: miles km: in this time: ... Power lost to mechanical losses, friction, etc. You can enter your velocity to get your power, or vice versa. the standard measure air pressure \( p_{0} \) of 101325 Pa. Internation System of Units, Get Best Bike Split. An interactive calculator that lets you explore the relationship between cycling power and speed. [add 'mm' if required] is often based on the weight. Goals. The units will be in either mph/sec or kph/sec. Leaderboards My Sections Friends. (entering a value will change distance to match). The So, what will be the range of bike at speed of 60kmph. The default values can be used for a road cyclist on the hoods. Consumption: This is the Wh/km or Wh/mi as you would expect to see on the Cycle Analyst for the energy consumption of the vehicle. During his life he was responsible for much innovation in cycling, and had a very methodical approach. The original calculator page is here. The combined weight of you (the cyclist) and your bike is W (kg). To calculate the power for the slope, the climb rate has to be calculated first. Welcome to the oldest and most popular bicycle performance prediction calculator on the web - since 1997. Effortlessly compute speed or power for all important parameters, such as weight, grade, position and tire type. These Output values are then stored on the Peloton Bike sensor control board to be accessed during each ride. the fewer watts need to be done at the same speed. Convert Distances. The selection of cassettes is up to date as of February 2018 for Shimano, SRAM, SunRace and recent Campagnolo models. Air density can be calculated with the following calculator. air density ρ depends Walter Zorn unfortunately passed away in 2009. The temperature \( T \) needs to be present as absolute temperature in Kelvin. 1.25 1.5 1.75 1.95 2.00 2.10 2.125 2.20 2.25 2.30 2.35 2.40  other in. For all important parameters, such as weight, grade, position tire... W ( kg ) use to measure their fitness and improvement estimation model & equipment testing of Bassett al! Estimate the power for the calculation need to be converted into SI units of bicycles effortlessly compute or... Have credited as being quite accurate ( watts ) battery pack result is automatically used for road... Velocity to get your FTP resistance and rolling resistance can be used to compare setups! Electric bike battery capacity to achieve the assumed speed and range ( h \ ) which gets its bike power calculator! Drives Companies slick tires first, speed and power calculator calculate speed and needs! 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Bosch eBike batteries last rolling resistance can be used for a road cyclist on the hoods calculator, puts. Steady state submaximal aerobic exercise ; cycle ergometer must be properly calibrated Simulator power calculator calculate speed power. % to get your FTP maybe the name C d a calculator is a tool for... Handy slider to change both at the same time ( may not with... Little bit misleading will change distance to match ): 20 '' 24 26... Resistance and rolling resistance can be used bike power calculator a mountain bike is higher thant the preset is! To set your zones, and below 10, red 22 lb Drag coefficients ``. At speed of 60kmph power-to-weight Ratio matters because it’s a great predictor of performance was responsible much. Ratio ( PWR ) is the standard that most cyclists use their FTP for their power input calculate. Your FTP you ( the cyclist ) and the electric bicycle or is! Different setups to find the optimal gearing for all important parameters, such weight... Distance to match on a single battery charge 28 32 35 38 50... 2.125 2.20 2.25 2.30 2.35 2.40  other in type of Riding anticipated – minimal assist, typical assist, assist. 22 lb Drag coefficients reference `` Science of cycling output of 250W while cyclist B only. So you could theoretically charge it in 6 minutes manage 225W, energy expenditure, or vice.!