12 Med Spa KPIs You Should Track Weekly (Most Owners Miss Half)

1. Patient Acquisition Cost (PAC)

Formula: Total marketing spend / Number of new patients acquired

This is the most important number most owners don't know. If you're spending $3,000/month on ads and getting 15 new patients, your PAC is $200. That's healthy. But if you're spending $5,000 and getting 10, your $500 PAC is unsustainable unless your average patient lifetime value is above $2,500.

Track by channel. Your Instagram PAC might be $100 while Google Ads is $350. This tells you where to shift budget.

2. Lead-to-Patient Conversion Rate

Formula: New appointments booked / Total inquiries received

If 100 people message your Instagram or fill out a contact form, how many actually book? If it's under 30%, the problem isn't your marketing — it's your response process. Practices that respond within 5 minutes convert at 3-5x the rate of those that respond in 1-2 hours.

Action trigger: If this drops below 25%, audit your response time and response quality before increasing ad spend.

3. Lead Response Time

Formula: Average time between inquiry received and first response

This is the single highest-use metric for growth. A study across 2,000+ businesses found that leads contacted within 5 minutes are 100x more likely to convert than those contacted after 30 minutes. For med spas, where inquiries often come through Instagram DMs, speed is everything.

Action trigger: If average response time exceeds 15 minutes, you need automation or dedicated staff for inquiries.

4. Revenue Per Patient Visit

Formula: Total service revenue / Total patient visits

This tells you whether you're maximizing each appointment slot. Low revenue per visit usually means patients are only booking single basic treatments. The fix isn't raising prices — it's training providers to recommend complementary services during treatment.

Action trigger: If this is under $200, review your treatment bundling and provider consultation scripts.

5. Treatment Room Utilization Rate

Formula: Booked treatment hours / Available treatment hours

Every empty hour in a treatment room is revenue you can never recover. If you have 2 rooms open 10 hours/day, that's 100 hours/week of capacity. At 70% utilization, you're using 70 hours. Getting to 80% is 10 more billable hours — at $300/hour average, that's $3,000/week or $156,000/year in additional revenue from the same fixed costs.

Track by day of week and time slot to find patterns. Many spas are at 90%+ on Saturdays and 50% on Tuesdays. Targeted promotions can level this out.

6. Retail Product Revenue Percentage

Formula: Retail product sales / Total revenue

Top-performing med spas generate 20-30% of their revenue from skincare products, not just treatments. Products have 50-60% margins and require zero treatment room time. If your retail percentage is under 10%, your providers aren't recommending homecare routines effectively.

7. Patient Retention Rate (90-Day)

Formula: Patients who rebook within 90 days / Total patients seen in the period

This is the metric that separates growing practices from stagnant ones. The industry average is 47%, meaning more than half of patients never return. Practices with systematic follow-up (aftercare messages, check-in calls, rebooking reminders) consistently hit 65-80%.

Action trigger: If under 50%, implement a 3-touchpoint follow-up system before spending more on acquisition.

8. No-Show and Late Cancellation Rate

Formula: (No-shows + late cancellations) / Total scheduled appointments

The industry average is 22%. Every no-show costs you $150-$400 in lost revenue plus wasted preparation time. A 3-touch reminder system (48 hours, 24 hours, 2 hours) typically reduces this to 8-12%. Adding a moderate cancellation fee drops it further.

Action trigger: If above 15%, implement automated reminders immediately. This is the fastest ROI improvement you can make. Use our no-show cost calculator to see the impact.

9. Patient Lifetime Value (LTV)

Formula: Average revenue per visit × Average visits per year × Average patient lifespan in years

If your average patient spends $350/visit, comes 4 times per year, and stays 2.5 years, their LTV is $3,500. This number determines how much you can spend on acquisition. A healthy LTV:PAC ratio is at least 5:1 — meaning each dollar spent on acquiring a patient generates $5 in lifetime revenue.

10. Online Review Score & Velocity

Formula: Average star rating across Google, Yelp, RealSelf

Your review score directly impacts new patient acquisition. Practices with a 4.7+ rating receive 2-3x more organic inquiries than those at 4.3. But the score alone isn't enough — Google favors practices with recent, consistent reviews. A practice with 50 reviews from 2 years ago ranks lower than one with 30 reviews from the last 6 months.

Track velocity: New reviews per month. If you're under 2/month, your review request process is broken.

11. Staff Productivity (Revenue Per Provider Hour)

Formula: Total provider revenue / Total provider hours worked

This metric reveals scheduling inefficiency. If a provider is booked 8 hours but generating revenue for only 5 of them, you have gaps — whether from no-shows, poor scheduling, or slow turnover between patients. The goal is not 100% (providers need breaks and prep time), but every 10% improvement directly hits your bottom line.

12. Rebooking Rate at Checkout

Formula: Patients who schedule next appointment at checkout / Total patients seen

The easiest appointment to book is the next one — while the patient is still in your spa, happy with their results, and thinking about maintenance. If your rebooking rate is under 40%, your checkout process needs a script: "Your next [treatment] should be in [X weeks]. I have openings on [date] and [date] — which works better?"