How do I work out mpg?
Moderator: Modsquad
-
- Regular User
- Posts: 68
- Joined: Tue May 21, 2013 9:02 am
- Location: Fleet, Hampshire, UK
How do I work out mpg?
I get 130 miles from a tank. Can somebody tell me what this is in mpg?
Thanks.
Thanks.

Re: How do I work out mpg?
You have to keep track of how many miles you've driven since the last fill up. Fill it again and then do the math dividing the miles by the gallons used. For example, 130 miles using 1.3 gallons would be 130/1.3 = 100 MPG. You have to use the number of gallons on the new fill up since that's the amount you would have used to go the 130 miles. Makes no difference what was in the tank before as long as it was full when you started.. Hope you understand the answer. Also the tank should be full when you do the math. Over a few tankfuls you'll get a good average because you may not fill it to the same level exactly each time. Hop that helps.

Re: How do I work out mpg?
You can also record your gas purchases at Fuelly - https://www.fuelly.com/motorcycle/honda/pcx150 They will keep a tally of your mileage stats for you.
- Mel46
- Forum Benefactor
- Posts: 6964
- Joined: Tue Nov 13, 2012 5:13 pm
- Year: 2013
- Color: red PCX
- Location: Dallas, Ga USA
Re: How do I work out mpg?
And you are already close to what you should average. It seems as though most PCX 150s are getting close to 100mpg. Ours has been between 100 MPG and 110 MPG, depending on the roads we take and the traffic. Sometimes we get less than the 100 MPG average but it all seems to average out.
Currently own:
Red 2013 Honda PCX150
Givi tall windshield & tailbox - Lots of extra lights
Custom seat from Thailand - Bad Boy Airhorn
Takegawa Lowering Shocks - Michelin City Grip Tires
Headlight assy upgraded to LEDs w/HS5 main bulbs
NCY variator, drive face, and rollers
Red 2013 Honda PCX150
Givi tall windshield & tailbox - Lots of extra lights
Custom seat from Thailand - Bad Boy Airhorn
Takegawa Lowering Shocks - Michelin City Grip Tires
Headlight assy upgraded to LEDs w/HS5 main bulbs
NCY variator, drive face, and rollers
- Alibally
- Official Moderator
- Posts: 1761
- Joined: Thu Nov 03, 2011 5:47 pm
- Year: 2019
- Color: Black
- Location: Edinburgh, Scotland
How do I work out mpg?
I use fuelly as well. See http://www.fuelly.com/driver/alibally/pcx
If you fill up every time it works it out for you. All you need to set is if you want UK or US gallons or litres.
If you fill up every time it works it out for you. All you need to set is if you want UK or US gallons or litres.

Re: How do I work out mpg?
What is that based on? I just went to fuelly and found 14 PCX150 riders with ten or more fuel-ups and only two of the 14 were even close to 100mpg and the average for all 14 was 89.7 mpg.Mel46 wrote: It seems as though most PCX 150s are getting close to 100mpg. Ours has been between 100 MPG and 110 MPG, depending on the roads we take and the traffic.
85.7
89.1
83.6
97.8
92.9
93.7
91
75.9
93.7
96.7
89.4
104.8
85.9
75.6
89.7 Average.
Mine is below average. I would love to get 100mpg. I suspect i don't because most of my riding is +45mph.

- khaosaming
- Forum Benefactor
- Posts: 311
- Joined: Fri Feb 01, 2013 2:30 am
- Location: Trat, Thailand
Re: How do I work out mpg?
I get less than 80 mpg (around 3 litres per 100 km). I'm heavy-handed. Those who achieve 100 mpg must be very soft on the throttle, never exceeding 80 km/h speed. I always ride full throttle when outside city limits.
Here's a conversion site:
http://calculator-converter.com/l_100km ... 100_km.php
Here's a conversion site:
http://calculator-converter.com/l_100km ... 100_km.php
I have learned from my mistakes, and I am sure I can repeat them exactly.
Re: How do I work out mpg?
I like to rev mine off the lights and an not soft handed but still get over 100mpg. I note that my longer journeys usually belting along at 50 plus gets me into 110 region. But that's on a 125

- khaosaming
- Forum Benefactor
- Posts: 311
- Joined: Fri Feb 01, 2013 2:30 am
- Location: Trat, Thailand
Re: How do I work out mpg?
Spritmonitor has a sampling of 136 PCX counts.
Results:
Min 1.95
Av 2.53
Max 3.24
The figures are litres per 100 km. The average is 92.97 mpg US.
http://www.spritmonitor.de/en/overview/ ... 8-PCX.html
The imperial (UK) gallon = 4.54609 litres
The US gallon = 3.785411784 litres
Are all you guys counting in US gallons?
Results:
Min 1.95
Av 2.53
Max 3.24
The figures are litres per 100 km. The average is 92.97 mpg US.
http://www.spritmonitor.de/en/overview/ ... 8-PCX.html
The imperial (UK) gallon = 4.54609 litres
The US gallon = 3.785411784 litres
Are all you guys counting in US gallons?
I have learned from my mistakes, and I am sure I can repeat them exactly.
- Mel46
- Forum Benefactor
- Posts: 6964
- Joined: Tue Nov 13, 2012 5:13 pm
- Year: 2013
- Color: red PCX
- Location: Dallas, Ga USA
Re: How do I work out mpg?
Obviously the 100mpg figure has to be optimal. If you ride full throttle all the time and have a lot of stop and go traffic it will affect your mileage, just like in a car. If you travel at a reasonable speed on a road that is a standard road, not a dirt farm road, then you should get close to or on the 100 MPG mark. Be realistic. 100mpg is optimal.
Currently own:
Red 2013 Honda PCX150
Givi tall windshield & tailbox - Lots of extra lights
Custom seat from Thailand - Bad Boy Airhorn
Takegawa Lowering Shocks - Michelin City Grip Tires
Headlight assy upgraded to LEDs w/HS5 main bulbs
NCY variator, drive face, and rollers
Red 2013 Honda PCX150
Givi tall windshield & tailbox - Lots of extra lights
Custom seat from Thailand - Bad Boy Airhorn
Takegawa Lowering Shocks - Michelin City Grip Tires
Headlight assy upgraded to LEDs w/HS5 main bulbs
NCY variator, drive face, and rollers
Re: How do I work out mpg?
I stopped calculating mine when a combination of speed, wind and worn drivebelt saw it drop below 80mpg (proper UK gallons)
Four decades on two wheels has taught me nothing, all advice given is guaranteed to be wrong
- Mel46
- Forum Benefactor
- Posts: 6964
- Joined: Tue Nov 13, 2012 5:13 pm
- Year: 2013
- Color: red PCX
- Location: Dallas, Ga USA
Re: How do I work out mpg?
Proper?? You guys drive on the wrong side of the road. Nothing proper about that.
Currently own:
Red 2013 Honda PCX150
Givi tall windshield & tailbox - Lots of extra lights
Custom seat from Thailand - Bad Boy Airhorn
Takegawa Lowering Shocks - Michelin City Grip Tires
Headlight assy upgraded to LEDs w/HS5 main bulbs
NCY variator, drive face, and rollers
Red 2013 Honda PCX150
Givi tall windshield & tailbox - Lots of extra lights
Custom seat from Thailand - Bad Boy Airhorn
Takegawa Lowering Shocks - Michelin City Grip Tires
Headlight assy upgraded to LEDs w/HS5 main bulbs
NCY variator, drive face, and rollers
Re: How do I work out mpg?
Nay lad, it is you lot who drive on the wrong side.
Damned uppity Napoleon loving colonials.
Damned uppity Napoleon loving colonials.

Four decades on two wheels has taught me nothing, all advice given is guaranteed to be wrong
- you you
- What's a wot?
- Posts: 10001
- Joined: Sat Jun 30, 2012 5:37 pm
- Location: Between Lulu and Chichi
Re: How do I work out mpg?
Don't you know saying colonials is offensive now?gn2 wrote:Nay lad, it is you lot who drive on the wrong side.
Damned uppity Napoleon loving colonials.
I guess saying "those chaps from the new world” is right out
-
- Regular User
- Posts: 68
- Joined: Tue May 21, 2013 9:02 am
- Location: Fleet, Hampshire, UK
Re: How do I work out mpg?
So ive done my second fuel up and recorded it on fuelly. I cant work out how to add this to my signature. Ive seen the instructional thread but I dont have a 'share my mpg' on my fuelly page.
Fuelly worked out my mpg as 110 which im pleased with. I mainly use 30 and 40 mph roads, probably more 40's. i would estimate my average speed to be around 37-38 mph.
I have a pcx 125 which appears to be a bit better on the fuel economy than the 150's.
Fuelly worked out my mpg as 110 which im pleased with. I mainly use 30 and 40 mph roads, probably more 40's. i would estimate my average speed to be around 37-38 mph.
I have a pcx 125 which appears to be a bit better on the fuel economy than the 150's.

Re: How do I work out mpg?
Safer than riding stateside, I practiced in the UK before my trip and found it far too dangerous :-)Mel46 wrote:Proper?? You guys drive on the wrong side of the road. Nothing proper about that.
