temperature comparison equation for water use
 

anyone have a temperature comparison equation for water use? for example, I used 1/2 bottle this morning at 65 degrees over 2 hours. later at 90 degrees how much water will I use over the same distance? I think I'm OK, I brought a 2nd bottle for the ride home & intend to fill both with ice & water from the water cooler ...

my new bike came with a quantum computer. it says you need "approximately more. sometimes."

The one I use is: (Temperature x relative humidity x exertion in Watts) / 300 * pi = number of required water bottles

Or I just wing it.

I don't think you're going to find what you're looking for, but maybe. At best, there may be some rough guidelines, but it greatly depends on your exertion level, humidity, temperature, etc.

On my long rides (~150 miles), I typically stop and fill up and average about 2 gallons (with some powdered electrolytes mixed in) over 150 mile ride. This was in Az with temps in the upper 90s, but very low humidity.

my commute is only 8 miles one-way, so i don't travel with water.

i down a pint before i leave and then hydrate as needed when i arrive at work/home.

the answer is: 3 times as much

N+1

Add one cube at a time til the coffee doesn’t scald you

There's an app for that.

((Your weight after yesterday's ride, in pounds) - (Your weight before yesterday's ride))/16 + (Pints you drank during yesterday's ride) = (Pints you should take for today's ride) (1,2,3,4)

(1) Assumes commute rides are similar from day to day
(2) Divide pints needed by pints per water bottle to calculate needed water bottles
(3) Take an extra bottle in case it's hotter, dryer, or you get a flat today
(4) Yes, I have technical degrees

I did one of those in about 100 degree weather. Whew!!!

I just couldn't keep up with the water. Perhaps 2 gallons was about right. Drained my two 33 oz bottles and Camelback a couple of times. The early afternoon was the worst, but much better as the temps started dropping in the evening.

Under more ordinary temps... maybe a gallon or so. I know most of the parks that tend to have water, and refill whenever I can. It can be a pain when they shut off the water in the winter, but I can just about do the ride with just 2 bottles in the winter.

My longest distance ride (not the longest in time) was 14 hours at temps between 30 and 35C. I drank about 9 liters, or 15 bottles.