Periodization Planner Calculator Formula

Understand the math behind the periodization planner calculator. Each variable explained with a worked example.

Use the Periodization Planner Calculator

Formulas Used

Base Phase Duration

base_weeks = round(total_weeks * base_pct / 100)

Build Phase Duration

build_weeks = round(total_weeks * build_pct / 100)

Peak/Taper Duration

peak_weeks = round(total_weeks * peak_pct / 100)

Variables

VariableDescriptionDefault
total_weeksTotal Preparation Weeks(weeks)16
base_pctBase Phase Allocation(%)40
build_pctBuild Phase Allocation(%)35
peak_pctPeak/Taper Phase Allocation(%)25

How It Works

Training Periodization

Periodization structures training into phases that progressively build fitness and allow for peak performance at the right time.

Three-Phase Model

Base Phase (40%): Build aerobic capacity and general strength with moderate intensity and increasing volume.

Build Phase (35%): Increase intensity with sport-specific work while maintaining volume.

Peak/Taper Phase (25%): Reduce volume while maintaining intensity to achieve supercompensation for competition.

Phase Duration = Total Weeks x Phase Percentage

Worked Example

A 16-week training plan with 40% base, 35% build, 25% peak.

total_weeks = 16base_pct = 40build_pct = 35peak_pct = 25
  1. 01Base phase = 16 x 0.40 = 6.4, rounded to 6 weeks
  2. 02Build phase = 16 x 0.35 = 5.6, rounded to 6 weeks
  3. 03Peak/taper = 16 x 0.25 = 4.0 = 4 weeks

Ready to run the numbers?

Open Periodization Planner Calculator