FitCalc

Fitness & Nutrition Blog

Evidence-based guides on fitness, nutrition, and health.

9 min read

One Rep Max Guide: How to Calculate and Use Your 1RM for Strength Training

Learn how to calculate your one rep max (1RM) safely, use it to set training weights, and track strength progress for squat, bench press, deadlift, and other lifts.

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8 min read

Body Fat Percentage Guide: Healthy Ranges, How to Measure, and How to Lower It

Understand what body fat percentage means, what's healthy for men and women, how to accurately measure it without expensive equipment, and how to reduce it effectively.

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9 min read

Intermittent Fasting Calculator: Finding Your Ideal Eating Window

Compare 16:8, 18:6, 5:2, and other IF protocols. Learn how to calculate your eating window, set optimal meal timing, and choose the right fasting schedule for your lifestyle.

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9 min read

Protein Intake Guide: How Much Protein Do You Actually Need?

Science-backed guide to daily protein requirements for muscle gain, fat loss, and healthy aging. Learn the best protein sources, timing, and how to hit your targets.

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9 min read

Calorie Deficit Guide: How to Create the Right Deficit for Fat Loss

Learn how to calculate your ideal calorie deficit, avoid common mistakes that stall progress, and use science-backed strategies for sustainable fat loss without losing muscle.

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8 min read

BMI Explained: What It Measures, Its Limits, and Better Alternatives

Understand what BMI actually measures, why it has real limitations, when it's useful, and which body composition metrics give a more complete picture of health.

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10 min read

Macro Calculator Guide: How to Set Your Protein, Carbs, and Fat

Complete guide to calculating your macros for any goal — fat loss, muscle gain, or maintenance. Learn how to set protein, carbs, and fat targets that actually work.

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9 min read

How to Calculate TDEE: Total Daily Energy Expenditure Explained

Learn exactly how to calculate your TDEE using proven formulas. Understand BMR, activity multipliers, and how to use TDEE for weight loss or muscle gain.

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