Help on determining avg speed?
06-20-07 | 11:10 AM
#51
Should be out Riding
Joined: Dec 2006
Posts: 1,902
Likes: 2
From: Blacksburg, VA
Bikes: Bob Jackson Vigorelli
Originally Posted by Bobby Lex
You guys are brutal!
Actually, because of "rounding" some of the answers above are wrong. Here's the formula:
Miles...divided by minutes...times 60...equals average speed (in miles per hour)
Applied to the OP's data:
14 divided by 46 = 0.30434
0.30434 times 60 = 18.26 mph average speed
Bob
P.S. It is useful to know this formula even if you DO have a cycling computer because it can help you figure your ETA or how fast you have to go to make it to a destination by a certain time. (e.g. I have 20 minutes left to go 8 miles to get to the start of the Club Ride on time....8 divided by 20 = .4 times 60 = 24. Thus, you have to average 24 mph to get to the Club Ride on time.)
Actually, because of "rounding" some of the answers above are wrong. Here's the formula:
Miles...divided by minutes...times 60...equals average speed (in miles per hour)
Applied to the OP's data:
14 divided by 46 = 0.30434
0.30434 times 60 = 18.26 mph average speed
Bob
P.S. It is useful to know this formula even if you DO have a cycling computer because it can help you figure your ETA or how fast you have to go to make it to a destination by a certain time. (e.g. I have 20 minutes left to go 8 miles to get to the start of the Club Ride on time....8 divided by 20 = .4 times 60 = 24. Thus, you have to average 24 mph to get to the Club Ride on time.)
14 divided by 46 = 0.30435
0.30435 times 60 = 18.26 mph average speed
But why not be consistent and keep it to 4 significant figures like you have in the final answer?
14 divided by 46 = 0.3043
0.3043 times 60 = 18.26 mph average speed
Last edited by lvleph; 06-20-07 at 11:40 AM.
06-20-07 | 11:23 AM
#52
guppy
Joined: Nov 2006
Posts: 439
Likes: 0
From: Philly
Bikes: Kona Nunu, 1960s fugi (now a fixed), 2006 Felt F3C
he said nothing about mph, just be nice and give him the speed in miles/minute
also
oh my god, have you people never had a bad brain day when it just does not work, for example you go to spell a word that you use every day, such as "word" and for the life of you it just looks wrong and you end up misspelling it anyway. wow go internet goons
also
oh my god, have you people never had a bad brain day when it just does not work, for example you go to spell a word that you use every day, such as "word" and for the life of you it just looks wrong and you end up misspelling it anyway. wow go internet goons
06-20-07 | 11:27 AM
#54
Should be out Riding
Joined: Dec 2006
Posts: 1,902
Likes: 2
From: Blacksburg, VA
Bikes: Bob Jackson Vigorelli
Originally Posted by labrat_62
he said nothing about mph, just be nice and give him the speed in miles/minute
also
oh my god, have you people never had a bad brain day when it just does not work, for example you go to spell a word that you use every day, such as "word" and for the life of you it just looks wrong and you end up misspelling it anyway. wow go internet goons
also
oh my god, have you people never had a bad brain day when it just does not work, for example you go to spell a word that you use every day, such as "word" and for the life of you it just looks wrong and you end up misspelling it anyway. wow go internet goons
06-20-07 | 11:28 AM
#55
guppy
Joined: Nov 2006
Posts: 439
Likes: 0
From: Philly
Bikes: Kona Nunu, 1960s fugi (now a fixed), 2006 Felt F3C
if that is the case, i have much better ideas, in the welcome new forum people section, we should have them post their credit card numbers for a period of 24 hrs. can you imagine all the great stuff we could get with that info.
06-20-07 | 11:29 AM
#56
Senior Member
Joined: Aug 2006
Posts: 266
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I think of it in terms of ratios. 14/46 = X/60. How do you figure what X is? Doing that little cross-multiplication thingie from school, you get: 46X = 14 x 60, or 46X = 840. Divide both sides of the equation by 46, and you arrive at your answer. X = 18.26 mph. I'm a lawyer and I still remember this stuff!! 
Now let's worry about important stats -- earned run average, on-base percentage, etc.
Now let's worry about important stats -- earned run average, on-base percentage, etc.
06-20-07 | 11:31 AM
#57
Code Warrior
Joined: Jul 2006
Posts: 620
Likes: 0
From: South suburbs of Chicago, Illinois
Bikes: Schwinn MTB/Raleigh Marathon
Originally Posted by EX1855
I was a math major for 2 semesters 
but seriously I couldnt for the life of me figure out what order i put it in LOL
but seriously I couldnt for the life of me figure out what order i put it in LOLLay off the weed man.
__________________
Elwood: It's 106 miles to Chicago, we got a full tank of gas, 1/2 a pack of cigarettes, it's dark and we're wearing sunglasses.
Jake: Hit it.
Elwood: It's 106 miles to Chicago, we got a full tank of gas, 1/2 a pack of cigarettes, it's dark and we're wearing sunglasses.
Jake: Hit it.
06-20-07 | 11:36 AM
#58
as I used to be
Joined: Nov 2006
Posts: 653
Likes: 0
From: Tulsa, OK
Bikes: 2006 Lemond Tourmalet triple
Originally Posted by EX1855
Whats the formula, like how do you figure out what your avg speed was, say i did 14 miles in 46 minutes, what was my avg speed, thanks!
Complete formula is:
Average_speed = Mileage / (Whole_hours + (((Minutes*60)+Seconds)/3600))
06-20-07 | 11:36 AM
#59
Code Warrior
Joined: Jul 2006
Posts: 620
Likes: 0
From: South suburbs of Chicago, Illinois
Bikes: Schwinn MTB/Raleigh Marathon
Originally Posted by labrat_62
oh my god, have you people never had a bad brain day when it just does not work, for example you go to spell a word that you use every day, such as "word" and for the life of you it just looks wrong and you end up misspelling it anyway. wow go internet goons
__________________
Elwood: It's 106 miles to Chicago, we got a full tank of gas, 1/2 a pack of cigarettes, it's dark and we're wearing sunglasses.
Jake: Hit it.
Elwood: It's 106 miles to Chicago, we got a full tank of gas, 1/2 a pack of cigarettes, it's dark and we're wearing sunglasses.
Jake: Hit it.
06-20-07 | 11:37 AM
#60
Senior Member
Joined: Aug 2005
Posts: 1,616
Likes: 1
Originally Posted by lvleph
Since you are claiming others are wrong...
14 divided by 46 = 0.30435
0.30434 times 60 = 18.26 mph average speed
But why not be consistent and keep it to 4 significant figures like you have in the final answer?
14 divided by 46 = 0.3043
0.3043 times 60 = 18.26 mph average speed
14 divided by 46 = 0.30435
0.30434 times 60 = 18.26 mph average speed
But why not be consistent and keep it to 4 significant figures like you have in the final answer?
14 divided by 46 = 0.3043
0.3043 times 60 = 18.26 mph average speed
1/100,000....Like I said, you guys are brutal.
Bob
06-20-07 | 11:39 AM
#61
guppy
Joined: Nov 2006
Posts: 439
Likes: 0
From: Philly
Bikes: Kona Nunu, 1960s fugi (now a fixed), 2006 Felt F3C
Originally Posted by mwrobe1
No...can't say that I have.
fair enough, just me. although without spell check i usually cannot spell to begin with. thank go i don't teach english and just play with numbers for most of the day
06-20-07 | 11:48 AM
#62
Infamous Member
Joined: Sep 2005
Posts: 24,360
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From: Ohio
Bikes: Surly Big Dummy, Fuji World, 80ish Bianchi
Originally Posted by Bobby Lex
1/100,000....Like I said, you guys are brutal.
Bob
I was thinking about posting a new thread with some lame troll question just to show how brutal it can really get!
(and I am not saying the OP was a lame troll question...it was just funny, especially when he stated he was a math major!)Edit: Ok I went and dooded it. https://www.bikeforums.net/road-cycling/311815-what-cadence.html
Despite that fact that I am fairly well known around here, I bet it still generates some 'nice' replies.
__________________
"Let us hope our weapons are never needed --but do not forget what the common people knew when they demanded the Bill of Rights: An armed citizenry is the first defense, the best defense, and the final defense against tyranny. If guns are outlawed, only the government will have guns. Only the police, the secret police, the military, the hired servants of our rulers. Only the government -- and a few outlaws. I intend to be among the outlaws" - Edward Abbey
"Let us hope our weapons are never needed --but do not forget what the common people knew when they demanded the Bill of Rights: An armed citizenry is the first defense, the best defense, and the final defense against tyranny. If guns are outlawed, only the government will have guns. Only the police, the secret police, the military, the hired servants of our rulers. Only the government -- and a few outlaws. I intend to be among the outlaws" - Edward Abbey
Last edited by chipcom; 06-20-07 at 11:57 AM.
06-20-07 | 11:59 AM
#63
But wait... I AM the man.
Joined: May 2006
Posts: 641
Likes: 2
From: No Ga.
Bikes: Merlin Extralight DA, 1982 Peugeot CFX-10 Campy NR, 7 Cruisers kept at beach, Raleigh Passage 4.0 hybrid, Marin Commuter with racks and bags
Geeze, if one more person gets on here and posts the formula for figuring average speed!!!!
I mean, do you check into a 3-page post that asks that question in it's title, go straight to the end without reading anything but the OP, and assume that nobody has answered it yet?
Oh, yeah, this is Road Cycles. I guess it is possible...
Matt
P.S. When reading yet another Pg.3 post telling how to calculate avg. speed, I get the mental image of a 3rd grader sitting in his desk with his hand raised because the teacher finally asked a question he can answer, about to come out of his pants if somebody doesn't call on him soon...
I mean, do you check into a 3-page post that asks that question in it's title, go straight to the end without reading anything but the OP, and assume that nobody has answered it yet?
Oh, yeah, this is Road Cycles. I guess it is possible...
Matt
P.S. When reading yet another Pg.3 post telling how to calculate avg. speed, I get the mental image of a 3rd grader sitting in his desk with his hand raised because the teacher finally asked a question he can answer, about to come out of his pants if somebody doesn't call on him soon...
06-20-07 | 12:08 PM
#64
Thread Starter
Senior Member
Joined: Feb 2007
Posts: 88
Likes: 0
Originally Posted by dutret
No if this was in person I would have been ruthless in ridiculing the type of ignorant **** up who claims to have "no use for math" or the type of school that offers a degree in "criminal justice."
As this was over a computer I just laughed at the incredible stupidity required to make a thread such as this.
As this was over a computer I just laughed at the incredible stupidity required to make a thread such as this.
06-20-07 | 12:11 PM
#65
Software for Cyclists
Joined: Dec 2003
Posts: 4,618
Likes: 0
From: Redding, California
Bikes: Trek 5200, Specialized MTB
Originally Posted by labrat_62
he said nothing about mph, just be nice and give him the speed in miles/minute
also
oh my god, have you people never had a bad brain day when it just does not work, for example you go to spell a word that you use every day, such as "word" and for the life of you it just looks wrong and you end up misspelling it anyway. wow go internet goons
also
oh my god, have you people never had a bad brain day when it just does not work, for example you go to spell a word that you use every day, such as "word" and for the life of you it just looks wrong and you end up misspelling it anyway. wow go internet goons
The OP could have found his answer in 2 seconds, and not looked like a dufus, if he'd just done a quick search like this:
https://www.google.com/search?q=calcu...006-11,GGGL:en
06-20-07 | 12:38 PM
#66
*
Joined: Jan 2007
Posts: 3,458
Likes: 2
Originally Posted by lvleph
Since you are claiming others are wrong...
14 divided by 46 = 0.30435
0.30435 times 60 = 18.26 mph average speed
But why not be consistent and keep it to 4 significant figures like you have in the final answer?
14 divided by 46 = 0.3043
0.3043 times 60 = 18.26 mph average speed
14 divided by 46 = 0.30435
0.30435 times 60 = 18.26 mph average speed
But why not be consistent and keep it to 4 significant figures like you have in the final answer?
14 divided by 46 = 0.3043
0.3043 times 60 = 18.26 mph average speed
06-20-07 | 12:54 PM
#67
Infamous Member
Joined: Sep 2005
Posts: 24,360
Likes: 7
From: Ohio
Bikes: Surly Big Dummy, Fuji World, 80ish Bianchi
Originally Posted by NoGaBiker
P.S. When reading yet another Pg.3 post telling how to calculate avg. speed, I get the mental image of a 3rd grader sitting in his desk with his hand raised because the teacher finally asked a question he can answer, about to come out of his pants if somebody doesn't call on him soon...
__________________
"Let us hope our weapons are never needed --but do not forget what the common people knew when they demanded the Bill of Rights: An armed citizenry is the first defense, the best defense, and the final defense against tyranny. If guns are outlawed, only the government will have guns. Only the police, the secret police, the military, the hired servants of our rulers. Only the government -- and a few outlaws. I intend to be among the outlaws" - Edward Abbey
"Let us hope our weapons are never needed --but do not forget what the common people knew when they demanded the Bill of Rights: An armed citizenry is the first defense, the best defense, and the final defense against tyranny. If guns are outlawed, only the government will have guns. Only the police, the secret police, the military, the hired servants of our rulers. Only the government -- and a few outlaws. I intend to be among the outlaws" - Edward Abbey
06-20-07 | 12:58 PM
#68
Should be out Riding
Joined: Dec 2006
Posts: 1,902
Likes: 2
From: Blacksburg, VA
Bikes: Bob Jackson Vigorelli
Originally Posted by vpiuva
The OP gave us two significant figure time, two s.f. distance, so you can only have two significant figures in your final answer. So it's 18. Let's keep up here.
06-20-07 | 02:05 PM
#71
But wait... I AM the man.
Joined: May 2006
Posts: 641
Likes: 2
From: No Ga.
Bikes: Merlin Extralight DA, 1982 Peugeot CFX-10 Campy NR, 7 Cruisers kept at beach, Raleigh Passage 4.0 hybrid, Marin Commuter with racks and bags
Oh, and welcome aboard...
A year ago I came on asking about whether my tire would explode because it had little cracks all over it. I got shelled for it (I ought to look up the thread...) Now I've been corrupted and I'm on here giving you grief. Well, actually, I was giving Chipcom grief, but you get my drift.
Matt
EDIT: Here you go. https://www.bikeforums.net/road-cycling/227335-should-i-replace-my-tires-due-age.html
A year ago I came on asking about whether my tire would explode because it had little cracks all over it. I got shelled for it (I ought to look up the thread...) Now I've been corrupted and I'm on here giving you grief. Well, actually, I was giving Chipcom grief, but you get my drift.
Matt
EDIT: Here you go. https://www.bikeforums.net/road-cycling/227335-should-i-replace-my-tires-due-age.html
Last edited by NoGaBiker; 06-20-07 at 02:20 PM.
06-20-07 | 02:44 PM
#73
Infamous Member
Joined: Sep 2005
Posts: 24,360
Likes: 7
From: Ohio
Bikes: Surly Big Dummy, Fuji World, 80ish Bianchi
Originally Posted by NoGaBiker
Oh, and welcome aboard...
A year ago I came on asking about whether my tire would explode because it had little cracks all over it. I got shelled for it (I ought to look up the thread...) Now I've been corrupted and I'm on here giving you grief. Well, actually, I was giving Chipcom grief, but you get my drift.
Matt
EDIT: Here you go. https://www.bikeforums.net/showthread.php?t=227335
A year ago I came on asking about whether my tire would explode because it had little cracks all over it. I got shelled for it (I ought to look up the thread...) Now I've been corrupted and I'm on here giving you grief. Well, actually, I was giving Chipcom grief, but you get my drift.
Matt
EDIT: Here you go. https://www.bikeforums.net/showthread.php?t=227335
__________________
"Let us hope our weapons are never needed --but do not forget what the common people knew when they demanded the Bill of Rights: An armed citizenry is the first defense, the best defense, and the final defense against tyranny. If guns are outlawed, only the government will have guns. Only the police, the secret police, the military, the hired servants of our rulers. Only the government -- and a few outlaws. I intend to be among the outlaws" - Edward Abbey
"Let us hope our weapons are never needed --but do not forget what the common people knew when they demanded the Bill of Rights: An armed citizenry is the first defense, the best defense, and the final defense against tyranny. If guns are outlawed, only the government will have guns. Only the police, the secret police, the military, the hired servants of our rulers. Only the government -- and a few outlaws. I intend to be among the outlaws" - Edward Abbey