PT business income model.

Personal trainer business economics: solo PT at 50-80/session, 2 sessions per client per week, 10-20 clients = 1,000-3,200/week gross. Subtract studio rental, equipment, insurance, marketing, and admin for net income. Most solo PTs earn 30-60k/year; top PTs with premium positioning hit 100k+.

15 clients/week × 60/session × 2 sessions × 48 weeks = 86,400 annual revenue. Expenses 1,500/month (gym rental, insurance, software, continuing education) × 12 = 18,000. Net 68,400/year. Fair middle-income for -based PT with established clientele.

Scaling beyond solo: group sessions (6-12 people × 15 each = higher £/hour), online training (lower per-client but scales), team-hiring (hire other trainers, take margin), package sales (10 sessions prepaid at discount). Each lever can double or triple revenue but adds operational complexity. Most PTs plateau at solo 15-25 client practice rather than scale.

A worked example

Try the defaults: clients per week of 15, session price of 60, sessions per client/week of 2, trading weeks of 48. The tool returns 68,400.00. You can adjust any input and the result updates as you type — no submit button, no reload. That's the real power here: seeing how sensitive the output is to one or two assumptions.

What moves the number most

The result responds to Clients per Week, Session Price, Sessions per Client/Week, Trading Weeks, and Monthly Expenses. Not every input has equal weight. Flip one at a time toward extreme values to feel which ones move the needle most for your situation.

The formula behind this

Annual revenue = clients × sessions × price × weeks. Net = revenue - monthly expenses × 12. Everything the calculator does is shown in the formula box below, so you can check the math against your own spreadsheet if you want.

What to do with a low result

A disappointing result is information, not a judgement. Pick the single input that dragged the figure down most and focus the next quarter on that one factor. Breadth-first improvement rarely works; depth-first on the worst input usually does.

What this doesn't capture

The score is a composite of the inputs you provide. Life context — job security, family obligations, health, housing — doesn't appear in the math but shapes the real picture. Use the number as a prompt, not a verdict.