Calculators
Calculation tools with the formula in plain sight and an official source — no app required.
-
-
-
-
-
-
- Age Calculator: Exact Age in Years, Months and Days 15 pages
-
-
- Daily Water Intake Calculator — How Much You Need 14 pages
-
- Daily Calcium Intake Calculator — RDA by Age and Sex 12 pages
-
-
- Gestational Age Calculator — Weeks and Days 11 pages
- Fitness Test Calculator — Seven Field Tests 10 pages
- Intermittent Fasting Calculator — Your Hours 10 pages
- One Rep Max Calculator — Epley and Brzycki 10 pages
- Running Pace Calculator: min/km, km/h and Miles 10 pages
-
- Due Date Calculator: LMP, Ultrasound and IVF 8 pages
- Borg RPE Scale: Calculator, Zones and Heart Rate 7 pages
- Critical Swim Speed Calculator (CSS) 6 pages
- Daily Step Goal Calculator: Find Your Range 6 pages
- FTP Training Zones Calculator 6 pages
- HIIT Interval Calculator — Work, Rest and Total Time 6 pages
- How Long to Rest Between Sets, by Training Goal 6 pages
- How Much Sun for Vitamin D a Day: The Honest Answer 6 pages
- Race Time Predictor — Riegel Formula 6 pages
- Running Cadence Calculator (Steps per Minute) 6 pages
- Safe Daily Caffeine Intake Calculator — the 400 mg Line 6 pages
- When to Take a Pregnancy Test: Calculator 6 pages
- Wilks Calculator (2020 Coefficients) 6 pages
- Age Grading Calculator for Runners 5 pages
- Chronotype Quiz: Are You a Morning or Evening Type? 5 pages
- How Much Exercise per Week? The Federal Answer 5 pages
- How Much Omega-3 Per Day: What the US Actually Sets 5 pages
- Pregnancy Spacing Calculator: Three Rules, One Date 5 pages
- RIR Calculator — Reps in Reserve 5 pages
- Saturated Fat Daily Limit — 10% or 6%? 5 pages
- Training Volume Calculator — Weekly Sets Per Muscle 5 pages
- Training Frequency Calculator by Muscle Group 4 pages
- TRIMP Calculator: Banister Training Impulse 4 pages
- Youth Strength Training Guidelines (NSCA) 4 pages