Starting to lift is simpler than the internet makes it look. You need to know roughly what weights to work with, how to gauge effort on your conditioning days, and how to track progress in a way the bathroom scale can’t. Three quick numbers cover all of it — and none of them require a coach.
Here’s the short version, with the tools to get each number.
Know your working weights
Programs are written as percentages of your one-rep max — the most you could lift once. You don’t have to actually attempt a true max (risky for beginners); the one-rep max calculator estimates it from a set you’ve already done, then gives you the training percentages to load each lift. Start on the lighter end and add weight as form holds.
Condition at the right effort
Strength work pairs well with easy conditioning, and "easy" has a number. Your heart rate zones tell you when you’re building an aerobic base versus grinding too hard — most recovery cardio should sit in the lower zones, not the red. Training by zone keeps your easy days genuinely easy, which is what makes the hard days productive.
Track the right thing
Muscle is denser than fat, so as you train, the scale can stall or rise even as you get leaner. That’s also why BMI misleads people who lift — it can’t tell muscle from fat.
A better signal is body composition: the body fat calculator gives a tape-measure estimate you can track monthly. And eating enough protein is what turns training into muscle rather than just fatigue.
Common questions
- Do I need to test my true one-rep max?
- No — especially as a beginner. Estimate it from a lighter set with the calculator; it’s safer and accurate enough to program from.
- How many days a week should I lift?
- Two to three full-body sessions is plenty to start, with rest days between. Consistency beats volume early on.
- Why did my BMI go up when I got fitter?
- BMI counts all weight the same. Gaining muscle raises it even as you get leaner — track body fat and how you look and feel instead.