If you were to pedal for an hour while generating 1000 watts constantly that would be a kilowatt-hour, a cumulative measure of power that the utility uses to charge us for their power monthly. which is 550 lb/ft (the force) per second (the rate). My earlier statement that Watts are a measure of force over a period of time is confusing because time is used as the rate the force ia applied. Watt and Newton meter are different, but somewhat related.ġ watt is equal to 1 newton meter per second.ġ newton meter is equal to 1 watt per second. Is the wattage any different if I pedal at the same NM & RPM for 30 minutes? Suppose I pedal at 70 RPM, and 20 Nm for 20 minutes. If what you say is true, does that mean that the watts reading (which is on the same scale as the Nm) has to have the amount of time I'm pedaling at a given NM and RPM figured into the equation to get the actual amount of watts?
It's a long way around and there is most likely a much better way, but this should work. Once that you've established a known RPM to NM you could work a new speed into the equation. One way maybe to convert Newton-Meters to pounds, RPM to feet per second, foot -pounds/sec to Watts. I believe Newton-Meters is a measure of force whereas Watts measure power, or force applied over a period of time. The ergometer only shows values of NM & watts up to 70 RPM, and I want to pedal faster.ĭon't quote me but this sounds like a variation of the question I asked. Is there a way to convert between Nm and watts for different RPM's? I have an ergometer which displays Nm & watts, depending on the pedal cadence (RPM).
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