Voice of Customer Theme Analyzer
Analyze feedback themes, calculate NPS, and prioritize roadmap items. Enter values for instant results with step-by-step formulas.
Formula
NPS = %Promoters - %Detractors
Net Promoter Score is calculated by subtracting the percentage of Detractors (0-6) from the percentage of Promoters (9-10). Passives (7-8) are ignored in the numerator but included in the total denominator. The result ranges from -100 to +100.
Worked Examples
Example 1: SaaS Survey
Problem: 40 Promoters, 30 Passives, 10 Detractors. Total 80.
Solution: %Prom: 50%. %Det: 12.5%. NPS: 50 - 12.5 = 37.5.
Result: NPS: 38 (Good)
Frequently Asked Questions
How is customer lifetime value (CLV) calculated?
Simple CLV = Average Purchase Value * Purchase Frequency * Customer Lifespan. For subscription models: CLV = Average Monthly Revenue per Customer / Monthly Churn Rate. For example, if a customer pays 50 dollars/month and your monthly churn is 5%, CLV = 50/0.05 = 1,000 dollars. CLV should be at least 3 times your customer acquisition cost.
How do I calculate customer acquisition cost (CAC)?
CAC = Total Sales and Marketing Expenses / Number of New Customers Acquired in that period. Include all related costs: advertising, salaries, tools, commissions, and overhead. CAC payback period = CAC / Monthly Gross Margin per Customer. A payback period under 12 months is generally healthy for SaaS businesses.
How do I interpret the result?
Results are displayed with a label and unit to help you understand the output. Many calculators include a short explanation or classification below the result (for example, a BMI category or risk level). Refer to the worked examples section on this page for real-world context.
Can I use the results for professional or academic purposes?
You may use the results for reference and educational purposes. For professional reports, academic papers, or critical decisions, we recommend verifying outputs against peer-reviewed sources or consulting a qualified expert in the relevant field.
How accurate are the results from Voice of Customer Theme Analyzer?
All calculations use established mathematical formulas and are performed with high-precision arithmetic. Results are accurate to the precision shown. For critical decisions in finance, medicine, or engineering, always verify results with a qualified professional.
Does Voice of Customer Theme Analyzer work offline?
Once the page is loaded, the calculation logic runs entirely in your browser. If you have already opened the page, most calculators will continue to work even if your internet connection is lost, since no server requests are needed for computation.