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Calcimator

Race Weight Calculator

Pack weight optimization for competitive race performance.

Inputs

Results

Total pack weight (kg)

6.85

Per person (kg)6.32
Food weight (kg)0.8
Water carry (kg)1.5
Gear weight (kg)4.55
Total calories needed3,600
Weight category (1-4)2
Pace impact (%)0.5
How to Use This Calculator
  1. Enter Race distance (km), Expected duration (hrs), and Number of days.
  2. Set Team size, Temperature (°C), and Water sources available (0/1).
  3. Review the Total pack weight (kg) result.
  4. Use Per person (kg) and Food weight (kg) to inform your decision.

What each input means

Race distance (km)
Total race course distance in kilometers.
Expected duration (hrs)
Expected time to complete the race.
Number of days
Single-day or multi-day event.
Team size
Number of team members for shared gear splitting.
Temperature (°C)
Expected temperature range (plan for coldest expected).
Water sources available (0/1)
1 if water refill points exist along course, 0 if self-supported.

What each result means

Total pack weight (kg)
Total weight of all gear, food, and water.
Per person (kg)
Weight per team member after shared gear splitting.
Food weight (kg)
Total food weight based on caloric needs and race duration.
Water carry (kg)
Maximum water carried between refill points.
Gear weight (kg)
Combined mandatory, clothing, nav, and pack weight.
Total calories needed
Total caloric requirement for the race.
Weight category (1-4)
1 = ultralight (<5kg), 2 = light (5-8kg), 3 = standard (8-12kg), 4 = heavy (>12kg).
Pace impact (%)
Estimated pace reduction from carrying excess weight.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Race distance (km) = 50, Expected duration (hrs) = 12, Number of days = 1, Team size = 2 = 6 input(s) provided
  2. Calculate Total pack weight
    Total pack weight = mandatoryGearKg + navGearKg + coldGearKg + rainGearKg +
    6.85 = 6.85
  3. Calculate Per person
    Per person = totalWeightKg - sharedGearKg
    6.32 = 6.32
  4. Calculate Food weight
    Food weight = (totalCalNeeded / calPerGram) / 1000
    0.8 = 0.8

Engine last updated .

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