Free, by design
The knowledge kit

A little context goes a long way.

Understand the inputs. Make sense of the numbers. Find clear, practical explanations for the tools you use.

Walking basics

How many steps are in a mile? A step-length guide

Calculate your steps per mile, compare measured step lengths and understand why 10,000 steps is not a fixed distance.

2 min read · StrideCalc editorial

Walking basics

How long does it take to walk a mile?

Compare one-mile walking times at different speeds and learn to plan moving time, breaks and the full outing.

2 min read · StrideCalc editorial

Running & pace

Running pace conversion: min/mile, min/km and speed

Convert running pace between miles and kilometers, read clock notation correctly and calculate constant-pace finish times.

2 min read · StrideCalc editorial

Running & pace

Running calories per mile: a worked example

See how body weight, pace and active-versus-total energy change a running calorie-per-mile calculation.

2 min read · StrideCalc editorial

Cycling & cardio

Cycling vs. stationary bike calories: which inputs matter?

Understand why outdoor speed, indoor watts and numbered resistance levels should not be used interchangeably.

2 min read · StrideCalc editorial

Swimming & cardio

Calories burned swimming for 30 minutes: stroke and rest time

Work through a 30-minute swimming estimate and see why stroke, effort and time resting at the wall change the comparison.

2 min read · StrideCalc editorial

Cycling & cardio

Rowing watts, stroke rate and calories: what to enter

Choose the correct inputs for an indoor rowing calorie estimate and compare working intervals without confusing watts and stroke rate.

2 min read · StrideCalc editorial

Cycling & cardio

Elliptical calories in 30 minutes: compare two effort settings

Compare moderate and vigorous elliptical examples, account for intervals and understand the limits of resistance-level comparisons.

2 min read · StrideCalc editorial

Understanding energy

Active vs. total calories: what are you actually comparing?

Two valid numbers can describe the same walk. Here is how to keep the resting baseline in view.

2 min read · StrideCalc editorial

Walking basics

How to measure your step length without guessing

Turn a step count into a distance estimate using a measurement that belongs to you.

2 min read · StrideCalc editorial

Treadmill walking

Treadmill incline: percent grade, speed and calorie estimates

Understand what the incline setting means and why a calculator needs more than the number on the console.

2 min read · StrideCalc editorial

Walking basics

Walking pace and calories: why the model changes in steps

Easy, moderate and brisk are useful categories. They are not a continuous map of your metabolism.

2 min read · StrideCalc editorial

Daily energy

How to choose an activity level for a TDEE calculator

Think about your entire week, not just how often you visit the gym.

2 min read · StrideCalc editorial

Body composition

Where to place the tape for the historical Navy body-fat method

A consistent measurement location is more useful than another decimal place.

2 min read · StrideCalc editorial

Body composition

Lean mass is not muscle mass: how to read the difference

Understand what remains after subtracting estimated fat mass, and why that number can move.

2 min read · StrideCalc editorial

Understanding energy

Why calorie calculators disagree — and how to compare them

Different formulas can produce different answers. A short input audit often explains why.

2 min read · StrideCalc editorial