Power Calculation (I)

Power: watts

Velocity: kph / mph

Rider weight: 

kg / lbs

Bicycle weight:

kg / lbs

Tires: 

Position: 

Grade: 

%

Head wind: 

kph /mph

Distance: 

km / mi

Temperature: 

C / F

Elevation: 

m / ft

Other Predictions: (entering a value will change distance to match)

Time: 

minutes

Calories: 

kJ / calories

Weight loss: 

kg / lbs

Units: 


Climbing Power Calculation (II)
Your weight:
Bike weight:
Vertical Gain:
Speed:
Time Taken: hr min sec
Tyre type:         ?
Position:
       
Total Weight:
Climb Rate (VAM):
Power(watts):
gravity:
rolling resistance:
wind resistance:
Grade(%):
Total distance (m):
Speed (m/s):
DM Cadence Calculator
  Speed:
 
  Chainring:
  Cog:
  Wheel Size:
Some comparisons on record climbs:
Rider Course Power and Climb Rate
Marco Pantani
(55.791/7.259 kg)		 Alpe d'Huez
13.8404 km, 7.89% grade		 373W = 300 + 3 + 70
1740.1 m/hr, 22.017 km/h
Jan Ullrich
(73.02 kg /8.16 kg)		 446W = 377 + 4 + 65
1704.4 m/hr, 21.56 km/h
Tyler Hamilton
(68.18 kg/8.39 kg)		 Mt Washington
12.231 km, 11.49% grade		 360W = 338 + 4 + 18
1623.3 m/hr, 14.13 km/h
Mike Engleman
(64.41 kg/8.16 kg)		 Mt Evans
45.06 km, 4.55% grade		 339W = 228 + 3 + 107
1154 m/hr, 25.437 km/h

Clincher
Tire Model
 		Crr at 7 bar
(~101 psi)		 Rolling Performance
at 7 bar (~101 psi) 		Grip Value
(higher = better)
 		Actual Width
 		Weight
 		Puncture
Resistance
 





Deda Tre
Giro d'Italia
 		0.0038
 		26.4 Watt
 		0.44
 		24.0 mm
 		236 g
 		Very Low
Vittoria
Open Corsa Evo CX
 		0.0039
 		27.1 Watt
 		0.45
 		23.5 mm
 		229 g
 		Low
Michelin
Pro2 Race
 		0.0042
 		29.2 Watt
 		0.45
 		23.0 mm
 		223 g
 		Very Good
Vittoria
Diamante Pro Rain
 0.0044
 30.6 Watt
 0.43
 22.5 mm
 201 g
 Okay
Michelin
Megamium 2
 0.0047
 32.7 Watt
 0.45
 23.0 mm
 223 g
 Good
Pariba
Revolution
 		0.0048
 		33.4 Watt
 		0.46
 		21.5 mm
 		211 g
 		Good
Michelin
Carbon
 		0.0050
 		34.7 Watt
 		0.46
 		23.0 mm
 		241 g
 		Very Good
Panaracer
Stradius Pro
 		0.0051
 		35.4 Watt
 		0.50
 		22.5 mm
 		214 g
 		Good
Schwalbe
Stelvio Plus
 		0.0052
 		36.1 Watt
 		0.43
 		22.5 mm
 		223 g
 		Low
Schwalbe
Stelvio Ev. Front/Rear *
 		0.0056
0.0057
 		39.3 Watt *
 		0.50
0.49
 		23.0 mm
23.0 mm
 		241 g
 		Low
Hutchinson
Fusion
 		0.0057
 		39.6 Watt
 		0.45
 		22.5 mm
 		217 g
 		Very Good
Continental
Ultra Gator Skin
 0.0058
 40.3 Watt
 0.50
 22.5 mm
 215 g
 Very Good
Ritchey
WCS Race Slick
 0.0058
 40.3 Watt
 0.46
 22.0 mm
 252 g
 Low
Schwalbe
Stelvio
 0.0059
 41.0 Watt
 0.43
 22.5 mm
 223 g
 Very Good
Specialized
S-Works Mondo
 0.0061
 42.4 Watt
 0.44
 22.5 mm
 227 g
 Good
Continental
GP Attack/Force *
 0.0073
0.0057
 44.5 Watt *
 0.47
0.43
 22.0 mm
23.0 mm
 200 g
212 g
 Very Good
Continental
GP 3000
 0.0067
 46.6 Watt
 0.45
 22.5 mm
 220 g
 Very Good
Hutchinson
Top Speed
 0.0069
 47.9 Watt
 0.45
 22.5 mm
 208g
 Low

* Rolling performance represents the average of both front and rear tires.
Tubular
Tire Model
 		Crr at 8.5 or 7 bar *
(~123 or ~101 psi)		 Crr at 7.5 or 6 bar *
(~108 or ~87 psi)		 Rolling Performance
at 8.5 or 7 bar *
 		Rolling Performance
at 7.5 or 6 bar *
 Listed Width
 		Actual Width
 		Height
 		Weight
 		Carcass
 		Inner Tube
 		Max. Pressure
 		Puncture
Resistance
 		Roundness
 












Veloflex
Carbon
 		0.0049
 		0.0050
 		34.05 Watt
 		34.74 Watt
 		22 mm
 		21.9 mm
 		20.8 mm
 		268 g
 		Cotton
Polyester
 		Latex
 		8-9 bar
116-131 psi
 		Low
 		Very Good
Gommitalia
Route du Nord *
 		0.0050
 		0.0053
 		34.74 Watt
 		36.83 Watt
 		24 mm *
 		23.7 mm
 		22.2 mm
 		285 g
 		Cotton
Polyester
 		Latex
 		7-8 bar
101-116 psi
 		Low
 		Okay
Gommitalia
Platinum
 		0.0053
 		0.0056
 		36.83 Watt
 		38.91 Watt
 		21.5 mm
 		21.5 mm
 		20.7 mm
 		266 g
 		Cotton
Polyester
 		Latex
 		8-9 bar
116-131 psi
 		Okay
 		Okay
Vittoria
Corsa Evo CX
 0.0054
 0.0055
 37.52 Watt
 38.22 Watt
 21 mm
 21.1 mm
 19.6 mm
 271 g
 Cotton
Polyester
 Latex
 8-14 bar
116-203 psi
 Okay
 Okay
Vittoria
Corsa Evo KS
 0.0057
 0.0059
 39.61 Watt
 41.00 Watt
 21 mm
 21.2 mm
 20.0 mm
 274 g
 Cotton
Polyester
 Latex
 8-14 bar
116-203 psi		 Low
 Okay
Continental
Competition
 		0.0059
 		0.0061
 		41.00 Watt
 		42.39 Watt
 		22 mm
 		21.8 mm
 		20.8 mm
 		265 g
 		Polyamide
 		Butyl
 		12 bar
174 psi
 		Very Good
 		Good
Veloflex
Roubaix *
 		0.0059
 		0.0061
 		41.00 Watt
 		42.39 Watt
 		24 mm *
 		23.9 mm
 		21.9 mm
 		283 g
 		Cotton
Polyester
 		Latex
 		6-7 bar
87-101 psi
 		Low
 		Very Good
Continental
Podium
 		0.0060
 		0.0062
 		41.69 Watt
 		43.08 Watt
 		19 mm
 		19.5 mm
 		18.5 mm
 		228 g
 		Polyamide Butyl 12 bar
174 psi		 Very Good Good
Schwalbe
Stelvio Tubular
 		0.0069
 		0.0072
 		47.95 Watt
 		50.03 Watt
 		22 mm
 		21.7 mm
 		20.3 mm
 		234 g
 		Polyamide
 		Butyl fused
to carcass
 		14 bar
203 psi
 		Low
 		Very Good
Tufo
Elite Jet
 		0.0073
 		0.0076
 		50.73 Watt
 		52.81 Watt
 		20 mm
 		20.3 mm
 		19.2 mm
 		162 g
 		Polyamide
 		Butyl fused
to carcass
 		10-15 bar
145-218 psi
 		Okay
 		Very Good
Schwalbe
Montello 300
 		0.0075
 		0.0083
 		52.12 Watt
 		57.67 Watt
 		22 mm
 		21.7 mm
 		20.5 mm
 		305 g
 		Cotton
Polyester
 		Butyl
 		7 bar
101 psi
 		Low
 		Okay
Tufo
Hi-Comp Carbon
 0.0077
 0.0080
 53.51 Watt
 55.59 Watt
 22 mm
 23 mm
 21.1 mm

 248 g
 Polyamide
 Butyl fused
to carcass		 8-12 bar
116-174 psi
 Low
 Very Good

* Tires wider than 23 mm are tested at the lower pressures of 7 and 6 bar (~101 psi - ~87 psi) respectively.

Maximal power output (In Watts/kg)
 

Men

Women
World class
 5s 1 min 5 min 20 min 5s 1 min 5 min 20 min
24.04 11.50 7.60 6.40 19.42 9.29 6.61 5.69
23.77 11.39 7.50 6.31 19.20 9.20 6.52 5.61
23.50 11.27 7.39 6.22 18.99 9.11 6.42 5.53
23.22 11.16 7.29 6.13 18.77 9.02 6.33 5.44
22.95 11.04 7.19 6.04 18.56 8.93 6.24 5.36
22.68 10.93 7.08 5.96 18.34 8.84 6.15 5.28
22.41 10.81 6.98 5.87 18.13 8.75 6.05 5.20
22.14 10.70 6.88 5.78 17.91 8.66 5.96 5.12
Exeptional
(domestic pro)
 21.86 10.58 6.77 5.69 17.70 8.56 5.87 5.03
21.59 10.47 6.67 5.60 17.48 8.47 5.78 4.95
21.32 10.35 6.57 5.51 17.26 8.38 5.68 4.87
21.05 10.24 6.46 5.42 17.05 8.29 5.59 4.79
20.78 10.12 6.36 5.33 16.83 8.20 5.50 4.70
20.51 10.01 6.26 5.24 16.62 8.11 5.41 4.62
Excelent
(e.g., cat.1)
 20.23 9.89 6.15 5.15 16.40 8.02 5.31 4.54
19.96 9.78 6.05 5.07 16.19 7.93 5.22 4.46
19.69 9.66 5.95 4.98 15.97 7.84 5.13 4.38
19.42 9.55 5,84 4.89 15.76 7.75 5.04 4.29
19.15 9.43 5.74 4.80 15.54 7.66 4.94 4.21
18.87 9.32 5.64 4.71 15.32 7.57 4.85 4.13
Very good
(e.g., cat.2)
 18.60 9.20 5.53 4.62 15.11 7.48 4.76 4.05
18.33 9.09 5.43 4.53 14.89 7.39 4.67 3.97
18.06 8.97 5.33 4.44 14.68 7.30 4.57 3.88
17.79 8.86 5.22 4.35 14.46 7.21 4.48 3.80
17.51 8.74 5.12 4.27 14.25 7.11 4.39 3.72
17.24 8.63 5.01 4.18 14.03 7.02 4.30 3.64
Good
(e.g., cat.3)
 16.97 8.51 4.91 4.09 13.82 6.93 4.20 3.55
16.70 8.40 4.81 4.00 13.60 6.84 4.11 3.47
16.43 8.28 4.70 3.91 13.39 6.75 4.02 3.39
16.15 8.17 4.60 3.82 13.17 6.66 3.93 3.31
15.88 8.05 4.50 3.73 12.95 6.57 3.83 3.23
15.61 7.94 4.39 3.64 12.74 6.48 3.74 3.14
Moderate
(e.g., cat.4)
 15.34 7.82 4.29 3.55 12.52 6.39 3.65 3.06
15.07 7.71 4.19 3.47 12.31 6.30 3.56 2.98
14.79 7.59 4.08 3.38 12.09 6.21 3.46 2.90
14.52 7.48 3.98 3.29 11.88 6.12 3.37 2.82
14.25 7.36 3.88 3.20 11.66 6.03 3.28 2.73
13.98 7.25 3.77 3.11 11.45 5.94 3.19 2.65
Fair
(e.g., cat.5)
 13.71 7.13 3.67 3.02 11.23 5.85 3.09 2.57
13.44 7.02 3.57 2.93 11.01 5.76 3.00 2.49
13.16 6.90 3.46 2.84 10.80 5.66 2.91 2.40
12.89 6.79 3.36 2.75 10.58 5.57 2.82 2.32
12.62 6.67 3.26 2.66 10.37 5.48 2.72 2.24
12.35 6.56 3.15 2.58 10.15 5.39 2.63 2.16
Untrained
(e.g., non-racer)
 12.08 6.44 3.05 2.49 9.94 5.30 2.54 2.08
11.80 6.33 2.95 2.40 9.72 5.21 2.45 1.99
11.53 6.21 2.84 2.31 9.51 5.12 2.35 1.91
11.26 6.10 2.74 2.22 9.29 5.03 2.26 1.83
10.99 5.99 2.64 2 .13 9.07 4.94 2.17 1.75
10.72 5.87 2.53 2.04 8.86 4.85 2.07 1.67
10.44 5.76 2.43 1.95 8.64 4.76 1.98 1.58
10.17 5.64 2.33 1.86 8.43 4.67 1.89 1.50

Average Speed Calculator

Calculates average speed to ride a fixed distance in a given time. Formula: Speed = Distance ÷ Time

Distance:
Time: Hours Minutes Seconds

Average Speed:

Time Calculator

Calculates time required to ride a fixed distance in a given average speed. Formula: Time = Distance ÷ Speed

Speed:
Distance:

Time (hrs:min:sec):

Distance Calculator

Calculates distance covered from average speed and time elapsed. Formula: Distance = Speed × Time

Distance Calculator
Speed:
Time: Hours Minutes Seconds

Distance: