Erg Performance Calculator - RBST GEAR CO.
 
ERG Performance Calculator
Concept2-style pace, power, distance & interval planning for all four ERG machines.
Distance for time
:
minutes : seconds
Please enter distance and time.
Required Pace
/500m split
Required Watts
watts
Avg Speed
m/sec
Cal/Hour
kcal/hr
Coach's note
Hold this pace from the first stroke. Going out too hard in the first 500m costs far more time than it saves.
Time for distance
:
minutes : seconds per 500m
Please enter distance and pace.
Finish Time
hh:mm:ss
Watts
watts
Cal/Hour
kcal/hr
Est. Calories
kcal
Coach's note
A 5-watt drop from 200W can add 3-4 seconds per 500m. Stay locked in from start to finish.
Calories for time
:
minutes : seconds
Please enter calories and time.
Cal/Hour needed
kcal/hr
Est. Watts
watts
Est. Pace
/500m split
Est. Distance
meters
Coach's note
Watch the Cal/hr on your PM5 — keep it at or above your required rate throughout the piece.
Power output
:
minutes : seconds
Please enter watts and duration.
Pace
/500m split
Est. Distance
meters
Cal/Hour
kcal/hr
Est. Calories
kcal
Coach's note
Set your damper to a drag factor that lets you hold these watts with good technique. Higher drag means more fatigue, not more power.
Interval planner
:
minutes : seconds
:
minutes : seconds
:
minutes : seconds per 500m
Please fill in all fields.
Total work
Total meters
Session length
Est. calories
Coach's note
Each interval should feel equally hard. Aim for negative split across the session.
Distance for time
:
minutes : seconds
Please enter distance and time.
Required Pace
/500m split
Required Watts
watts
Avg Speed
m/sec
Cal/Hour
kcal/hr
Coach's note
SkiERG is upper-body dominant — pace degradation happens faster. Start controlled and build in the final quarter.
Time for distance
:
minutes : seconds per 500m
Please enter distance and pace.
Finish Time
hh:mm:ss
Watts
watts
Cal/Hour
kcal/hr
Est. Calories
kcal
Coach's note
Engage your core and lats on every pull — SkiERG rewards full-body power, not just arm strength.
Calories for time
:
minutes : seconds
Please enter calories and time.
Cal/Hour needed
kcal/hr
Est. Watts
watts
Est. Pace
/500m split
Est. Distance
meters
Coach's note
Monitor Cal/hr on your PM5. SkiERG calorie calculations can vary — treat the distance estimate as approximate.
Power output
:
minutes : seconds
Please enter watts and duration.
Pace
/500m split
Est. Distance
meters
Cal/Hour
kcal/hr
Est. Calories
kcal
Coach's note
Breathe in rhythm with your pulls. Respiratory control is critical on sustained SkiERG efforts.
Interval planner
:
minutes : seconds
:
minutes : seconds
:
minutes : seconds per 500m
Please fill in all fields.
Total work
Total meters
Session length
Est. calories
Coach's note
Short SkiERG intervals reward explosive power. Use full rest to recover arms and shoulders.
Distance for time — BikeERG
:
minutes : seconds
Please enter distance and time.
Required Watts
watts
Avg Speed
km/h
Cal/Hour
kcal/hr
Est. Calories
kcal
Coach's note
BikeERG uses cycling-style power — watts are your primary metric. Keep RPM above 85 for efficiency.
Time for distance — BikeERG
Please enter distance and watts.
Finish Time
hh:mm:ss
Avg Speed
km/h
Cal/Hour
kcal/hr
Est. Calories
kcal
Coach's note
Consistent cadence beats power spikes. Steady watts = faster overall time.
Calories for time — BikeERG
:
minutes : seconds
Please enter calories and time.
Cal/Hour needed
kcal/hr
Est. Watts
watts
Est. Speed
km/h
Est. Distance
meters
Coach's note
Watch Cal/hr on the PM5 — small watt increases make a big difference on the BikeERG.
Power output — BikeERG
:
minutes : seconds
Please enter watts and duration.
Avg Speed
km/h
Est. Distance
meters
Cal/Hour
kcal/hr
Est. Calories
kcal
Coach's note
Use your FTP as the reference point. Sustained power at 85-95% FTP is the sweet spot for longer efforts.
Interval planner — BikeERG
:
minutes : seconds
:
minutes : seconds
Please fill in all fields.
Total work
Total meters
Session length
Est. calories
Coach's note
Spin up fast at the start of each work interval rather than grinding into your target watts.
Power output calculator
:
minutes : seconds
Please enter valid watts and duration.
Power
watts
Total Work
kilojoules
Cal/Hour
kcal/hr
Est. Calories
kcal
Coach's note
Focus on consistent power rep to rep. If watts drop more than 10%, take extra rest rather than grinding through degraded form.
Reps & sets planner
Please enter watts, reps, and sets.
Total Reps
reps
Total Work
kilojoules
Power
watts
Est. Calories
kcal
Coach's note
If average watts drop below 85% of target, increase rest between sets rather than reducing load.
Interval planner
:
minutes : seconds
:
minutes : seconds
Please fill in all fields.
Total work time
Total rest time
Session length
Est. calories
Coach's note
Hit your target watts within the first 3 strokes. The PM5 averages your entire interval — don't ease in.
This calculator is an estimate based on Concept2-style performance metrics. Actual PM5 results may vary based on machine type, drag factor, technique, and athlete efficiency. Calorie estimates use the Concept2 approximation of Cal/hr = watts × 4 ÷ 0.97 + 300.
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