Here's a fairly extensive HR Zone calculator. Yes it's FREE!!

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hey,guy
that's excellent

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I've used this calculator before and its great to have something that throws figures at you. Infact. it was partly my insporation for writing my website for logging times spent in zones. A website? yes, mainly for logging my numbers when I got to work without carrying a memory stick with me with a spreadsheet on it. www.Zonecalc.co.uk (http://www.Zonecalc.co.uk) is designed for 5 zones so a little adjsutment is needed depending on whose system you follow (I palnt to add more options for zones)

I've used this calculator before and its great to have something that throws figures at you. Infact. it was partly my insporation for writing my website for logging times spent in zones. A website? yes, mainly for logging my numbers when I got to work without carrying a memory stick with me with a spreadsheet on it. www.Zonecalc.co.uk (http://www.Zonecalc.co.uk) is designed for 5 zones so a little adjsutment is needed depending on whose system you follow (I palnt to add more options for zones)

So you're a cycling artist. :D Tyson