NPS Calculator (Net Promoter Score)

Here, NPS means Net Promoter Score, not India’s National Pension System. Use this page for the customer-survey metric that groups 0-to-10 recommendation ratings into promoters, passives, and detractors. It does not estimate pension contributions, retirement wealth, annuity purchases, tax deductions, or lock-in periods.

Net Promoter Score is often used by financial apps, banks, brokerages, insurers, and other service businesses to monitor customer sentiment. It is not a money return, not a pension estimate, and not an investment recommendation. It is a percentage-point difference between enthusiastic respondents and unhappy respondents. The result can help a business decide where to investigate service quality, onboarding, complaints, or product fit, but it must be paired with written feedback and sample-size discipline.

How to use this NPS calculator

Ask respondents the standard recommendation-style question on a 0 to 10 scale. Count how many people selected each score. Enter those counts in the matching fields from Score 0 through Score 10. Leave a score at zero when nobody selected it. The calculator accepts nonnegative counts and rejects negative or invalid inputs. It then groups scores 0 through 6 as detractors, 7 and 8 as passives, and 9 and 10 as promoters.

The result panel shows the NPS score, the number and percentage of promoters, the number and percentage of passives, the number and percentage of detractors, and total responses. The note explains the subtraction used. For business planning around the score, use the percentage calculator to audit shares, the budget calculator to plan improvement work, and the ROI calculator to compare campaign costs with measured gains. Those links do not change the NPS formula; they help interpret actions after the survey.

Calculation

Promoters are scores 9 and 10:

$\text{promoters} = \text{score 9 count} + \text{score 10 count}$

Passives are scores 7 and 8:

$\text{passives} = \text{score 7 count} + \text{score 8 count}$

Detractors are scores 0 through 6:

$\text{detractors} = \text{score 0 count} + \text{score 1 count} + \text{score 2 count} + \text{score 3 count} + \text{score 4 count} + \text{score 5 count} + \text{score 6 count}$

Total responses are:

$\text{total responses} = \text{promoters} + \text{passives} + \text{detractors}$

The promoter percentage is:

$\text{promoter percentage} = \frac{\text{promoters}}{\text{total responses}} \times 100$

The detractor percentage is:

$\text{detractor percentage} = \frac{\text{detractors}}{\text{total responses}} \times 100$

The Net Promoter Score is:

$\text{NPS} = \text{promoter percentage} - \text{detractor percentage}$

The score can range from -100 to 100. A value of 100 means every respondent was a promoter. A value of -100 means every respondent was a detractor. A score of zero means promoter and detractor percentages are equal, even if passives make up a large share of the sample.

Checking a nps calculator (net promoter score) scenario

The default counts in the inputs are 45 responses for score 10, 30 for score 9, 10 for score 8, 8 for score 7, 4 for score 6, 2 for score 5, 1 for score 4, and zero for scores 0, 1, 2, and 3. Promoters are score 9 plus score 10, so promoters equal 30 + 45 = 75. Passives are score 7 plus score 8, so passives equal 8 + 10 = 18. Detractors are scores 0 through 6, so detractors equal 0 + 0 + 0 + 0 + 1 + 2 + 4 = 7.

Total responses are:

$\text{total responses} = 75 + 18 + 7 = 100$

Promoter percentage is:

$\text{promoter percentage} = \frac{75}{100} \times 100 = 75$

Detractor percentage is:

$\text{detractor percentage} = \frac{7}{100} \times 100 = 7$

The NPS score is:

$\text{NPS} = 75 - 7 = 68$

The calculator therefore displays an NPS score of 68, with 75 promoters, 18 passives, 7 detractors, and 100 total responses. If ten passives became promoters without changing total responses, the score would rise because the promoter share would increase while the detractor share would stay the same. If ten passives became detractors, the score would fall sharply.

Interpreting NPS in a financial business

Financial products are high-trust services. A bank, investment platform, pension administrator, or insurance marketplace may use NPS to detect friction in account opening, servicing, claims, redemptions, support, or digital journeys. But the number alone cannot say what to fix. A strong score from a small, biased sample can mislead, and a weak score after a market downturn may reflect external losses as well as service problems.

Segment carefully. New customers, long-term customers, premium users, and customers who contacted support may produce different scores. Compare like with like, keep the question wording consistent, and track the trend across time. Written comments are essential: promoters identify strengths worth preserving, while detractors point to defects, unclear communication, or broken expectations. Passives are useful too because they may be easiest to move toward advocacy.

Practical tips and limitations

• Do not average the 0 to 10 scores; use the promoter-minus-detractor formula.
• Watch total response count before treating a score as reliable.
• Avoid comparing scores from different survey channels unless the sampling method is similar.
• Pair the score with comment analysis and operational metrics.
• Do not confuse this page with National Pension System planning; the calculation does not calculate retirement wealth, annuity purchase, tax deductions, or lock-in rules.

This calculator is informational, not financial advice.

Sources

• SEBI Investor Website, Investor education portal — investor-awareness context for financial-service users.
• Reserve Bank of India, Deposits information for bank customers — official banking-consumer information, included to distinguish financial product guidance from this survey metric.
• AMFI, NAV history — official mutual fund NAV access point, included to distinguish investment data from Net Promoter Score survey data.