Skip to main content
Calcimator

Rally Stage Speed Calculator

Calculate the required average speed to meet a rally time control. Accounts for surface type and provides a difficulty rating for stage planning.

Inputs

mi
min

Results

Required Average Speed

88.2 km/h

Max Time Allowed12.8 min
Pace (min/km)0.68 min/km
Surface Speed Adjustment15.6 km/h
Difficulty Rating8/10
Surface Namegravel
How to Use This Calculator
  1. Enter Stage Distance, Target Time, and Surface Type.
  2. Review the Required Average Speed (km/h) result.
  3. Use Max Time Allowed (min) and Pace (min/km) to inform your decision.

How the result changes with Target Time

Target TimeRequired Average Speed
1262.5 km/h
4217.9 km/h
789.6 km/h
1086.9 km/h

What each input means

Stage Distance
Total stage length in kilometers from the official road book or recce notes.
Target Time
Target stage time in minutes. Use bogey time from the organizer or your co-driver's pace notes.
Surface Type
0 = Tarmac (baseline speed), 1 = Gravel (15% slower typical), 2 = Snow/Ice (30% slower typical).

What each result means

Required Average Speed
Average speed needed over the stage to meet the target time.
Max Time Allowed
Estimated maximum time before penalties apply (target + 50%).
Pace (min/km)
Minutes per kilometer pace required for the stage.
Surface Speed Adjustment
Additional effective speed needed to compensate for surface conditions.
Difficulty Rating
Stage difficulty from 1-10 based on required pace and surface type.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    Stage Distance = 12.5, Target Time = 8.5, Surface Type = 1 = 3 input(s) provided
  2. Calculate Required Average Speed
    Required Average Speed
    88.2 = 88.2
  3. Calculate Max Time Allowed
    Max Time Allowed
    12.8 = 12.8
  4. Calculate Pace
    Pace
    0.68 = 0.68

Engine last updated . Checked against 1 independently-derived test — how we verify calculators.

Related Calculators

The questions that sit next to this one — chosen by subject, including calculators filed under a different category.

Motorsports & Racing

Autocross PAX Calculator

Calculate PAX-adjusted autocross times for cross-class comparison. Apply cone penalties and class-specific PAX factors to compare performance across different vehicle classes.

Motorsports & Racing

Lap Time Predictor

Project your optimal lap time based on sector-by-sector improvements and current tire condition. Useful for analyzing practice sessions and setting realistic race targets.

Motorsports & Racing

Fuel Strategy Calculator

Plan pit stop timing and fuel load for endurance races. Calculate the optimal number of stints, fuel per stint, and total pit time to minimize race duration.

More in Sports, Outdoors & Recreation.