Free gym calculators
Simple, free calculators, no signup. And when you want something tailored to your real workouts, there's Vance.
1RM Calculator
Estimate your one-rep max and the load to aim for at each rep count.
Volume Calculator
How many sets per muscle per week for your level.
Calorie Calculator (TDEE)
Your calorie needs for bulking, cutting or maintenance.
Beginner Starting Weights
What weight to start with, and how to come back after a break.
Why these tools?
Most gym calculators spit out a number and leave you to figure it out. Ours are built for the self-taught lifter who doubts: free, no signup, with a real explanation behind every result, and the honest take "here's a benchmark, now adjust it to your sessions." You'll find what you need to dial in your loads, your volume and your nutrition, the three pillars of progress.
How to use them together
They form a path: if you're just starting, begin with beginner starting weights to know what loads to start from. Once you have a few sessions in, the 1RM calculator gives the exact load to aim for at 5, 8 or 12 reps. The volume calculator then frames how many sets per muscle to do each week without falling into junk volume. And on the food side, the calorie (TDEE) calculator gives your needs and macro split for your goal. To go further, AI coach Vance ties it all to your real workouts.
Frequently asked questions
Are the calculators free?
Yes, completely. None of the tools asks for an account, an email or payment: you enter your numbers and get your result right away.
How do you use these calculators together?
They complement each other. The 1RM calculator gives the load to aim for at each rep count; the beginner weights tool orients you if you're starting or coming back; the volume calculator frames how many sets per muscle you need; and the calorie (TDEE) calculator handles nutrition. Training and nutrition, the two levers of building muscle.
Do these calculators replace a coach?
They give you solid benchmarks, but a calculation can't see your actual workouts. That's where Vance, AIVancePro's AI coach, takes over: it tracks your loads and volume over time and adjusts your plan when you progress, or when you stall.