FREE BUSINESS CALCULATORS
Profit, retention, and customer loyalty shouldn’t be guesswork. Use our free business calculators to measure ROI, churn, customer lifetime value, and NPS in seconds, with no spreadsheets and no sign-up.
Popular Tools
Simple calculators that turn revenue, customer, and feedback data into clear numbers you can act on.
Measure investment profitability by comparing total gains against the initial cost. Get a clear percentage return so you can decide which campaigns, tools, and projects are worth your budget.
Find out what percentage of customers you lose over a given period. Track retention trends, spot turnover problems early, and protect your recurring revenue.
Estimate the total revenue an average customer brings in over the relationship. Use it to set smarter acquisition budgets and focus on the customers who matter most.
Turn survey responses into your Net Promoter Score. See how many customers are promoters, passives, or detractors, and track loyalty over time.
Compare gains against cost to see your real return.
Measure how many customers you lose over a given period.
Estimate total revenue from an average customer relationship.
Turn feedback into a loyalty score you can track over time.
Compare acquisition cost against customer lifetime value.
Track churn trends month over month, not just a single snapshot.
Use your numbers to prioritize retention, growth, or spend.
See whether new revenue is outpacing what you’re losing to churn.
WHY THOUSANDS TRUST US
Every calculator is based on formulas our own team uses for client work.
Reviewed as industry standards change.
No spreadsheets, no guesswork, just clean numbers in seconds.
No hidden paywalls and no premium tiers.
Use any calculator instantly, no account needed.
Built from real client scenarios, not generic templates.
Measure ad performance and campaign efficiency with our free marketing calculators — get accurate numbers in seconds.
Check your site’s technical health, content length, and link structure with our free SEO and website tools.
They are tools that turn your business data into key performance numbers, such as return on investment, churn rate, customer lifetime value, and net promoter score. They help you see what’s working and where to focus.
Yes. Every calculator on this page is completely free, with no hidden fees, trial periods, or paywalls.
No. Open any calculator and use it right away, without signing up or sharing personal details.
ROI is your net profit divided by your total investment cost, multiplied by 100. For example, if you spend 1,000 and earn 1,500 in return, your net profit is 500 and your ROI is 50%. The ROI Calculator does this for you.
Churn rate is the percentage of customers you lose during a set period. Divide the number of customers lost by the number you had at the start, then multiply by 100. A lower churn rate means better retention.
CLV is the total revenue you can expect from an average customer over the entire relationship. A simple version multiplies average purchase value, purchase frequency, and customer lifespan. Comparing it with your cost to acquire a customer shows whether your growth is profitable.
NPS measures customer loyalty using one question: how likely are you to recommend us? Scores of 9–10 are promoters, 7–8 are passives, and 0–6 are detractors. Your NPS is the percentage of promoters minus the percentage of detractors, giving a score between -100 and +100.
Use ROI to judge overall profitability, since it accounts for all costs. Use ROAS to see how much revenue each dollar of ad spend generates. ROAS lives in our Marketing Calculators.
Click on the button below to schedule a 30-min free discovery call with our team.
Want to talk to our expert team?
© Copyright Reliqus. All rights reserved.
