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ROI Calculator (Marketing Campaign)

Calculate return on investment for any marketing campaign in seconds. Free online ROI calculator for US marketers and founders.

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CAC Calculator (Customer Acquisition Cost)

Calculate Customer Acquisition Cost in seconds. Track sales + marketing spend per new customer for any SaaS or D2C business.

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LTV Calculator (Customer Lifetime Value)

Estimate Customer Lifetime Value for SaaS, subscription, and D2C businesses. Free online LTV calculator with churn input.

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Conversion Rate Calculator

Calculate conversion rate for any funnel step. Free online tool for landing pages, ads, ecommerce, and SaaS signups.

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Break-Even Calculator

Find the exact units and revenue needed to break even. Free online break-even point calculator for any business.

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Profit Margin Calculator

Calculate gross, operating, and net profit margins. Free online profit margin calculator for US businesses.

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Markup Calculator

Calculate markup percentage and selling price from cost. Free markup calculator for retailers, wholesalers, and ecommerce.

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Cost Per Lead (CPL) Calculator

Calculate cost per lead from total spend and lead count. Free CPL calculator for US B2B, paid media, and demand-gen teams.

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Cost Per Acquisition (CPA) Calculator

Calculate Cost Per Acquisition for any paid channel. Free CPA calculator for US digital marketers and growth teams.

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Sales Growth Calculator

Calculate period-over-period sales growth in seconds. Free YoY, QoQ, and MoM sales growth calculator.

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Standard Deviation Calculator

Calculate sample and population standard deviation, variance, mean, and range from any list of numbers. Free online tool.

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Variance Calculator

Calculate sample and population variance from any dataset. Free variance calculator with mean and SD output.

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Z Score Calculator

Calculate z-score from a value, mean, and standard deviation. Free z-score calculator with probability lookup.

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P Value Calculator

Calculate p-value from a z-score or t-score. Free p-value calculator for one-tailed and two-tailed tests.

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Confidence Interval Calculator

Calculate 90%, 95%, 99% confidence intervals for a mean or proportion. Free online CI calculator.

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Margin of Error Calculator

Calculate margin of error for any survey or poll. Free MOE calculator with confidence level options.

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Sample Size Calculator

Calculate the required sample size for any survey or A/B test. Free sample size calculator with power analysis.

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Linear Regression Calculator

Fit a linear regression line to your data. Free regression calculator with slope, intercept, R², and predictions.

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Correlation Calculator (Pearson r)

Calculate Pearson correlation coefficient between two variables. Free correlation calculator with strength interpretation.

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Probability Calculator

Compute binomial probability, single-event probability, and combinations. Free probability calculator for AP Stats and analysts.

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A/B Test Calculator

Run a two-proportion z-test on your A/B test results. Free A/B testing calculator with significance and lift.

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Statistical Significance Calculator

Test if your A/B test result is statistically significant. Free significance calculator with p-value and confidence.

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Split Test Calculator

Compare two or more variants in a split test. Free online split test calculator with significance and lift.

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Conversion Lift Calculator

Calculate percentage lift between control and variant conversion rates. Free conversion lift calculator.

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Bayesian A/B Test Calculator

Run a Bayesian A/B test with credible intervals and probability variant beats control. Free Bayesian A/B calculator.

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Compound Interest Calculator

Calculate compound interest on any investment with monthly contributions. Free US compound interest calculator.

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Investment Return Calculator

Calculate total and annualized return on any investment. Free investment return calculator for US investors.

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Net Present Value (NPV) Calculator

Calculate NPV of any project with future cash flows. Free NPV calculator for US finance and investment teams.

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Internal Rate of Return (IRR) Calculator

Calculate IRR for any series of cash flows. Free IRR calculator for projects, investments, and real estate.

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Mortgage Calculator (US)

Calculate monthly mortgage payment with PITI breakdown. Free US mortgage calculator with amortization.

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Loan Calculator

Calculate monthly loan payment for any personal, auto, or business loan. Free loan calculator with amortization.

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Debt-to-Income (DTI) Ratio Calculator

Calculate your DTI ratio for mortgage and loan qualification. Free US DTI calculator with lender thresholds.

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Retirement Calculator (US)

Calculate retirement savings needed and projected nest egg. Free US retirement calculator with 401(k), IRA, SS.

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Inflation Calculator (US CPI)

Calculate US inflation impact between any two years using CPI. Free inflation calculator from 1913 to today.

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Savings Goal Calculator

Calculate monthly savings needed to reach any goal. Free savings goal calculator with interest projections.

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Monthly Recurring Revenue (MRR) Calculator

Calculate MRR from active subscriptions. Free MRR calculator for US SaaS founders and finance teams.

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Annual Recurring Revenue (ARR) Calculator

Calculate ARR from MRR or annual contracts. Free ARR calculator for US SaaS founders and investors.

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Churn Rate Calculator

Calculate customer and revenue churn rate. Free monthly and annual churn rate calculator for SaaS.

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Customer Retention Rate Calculator

Calculate monthly and annual customer retention rate. Free CRR calculator for SaaS and subscription.

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Burn Rate Calculator

Calculate monthly burn rate and runway. Free burn rate and runway calculator for US startups.

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CSV to JSON Converter

Convert CSV to JSON instantly in your browser. Free CSV to JSON converter with custom delimiter support.

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JSON Formatter & Validator

Format, validate, and beautify JSON instantly. Free JSON formatter with error highlighting.

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Remove Duplicates Tool

Remove duplicate lines, words, or values from any list. Free dedup tool with case-sensitivity options.

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Text Cleaner Tool

Clean text by removing extra spaces, line breaks, special characters. Free online text cleaner.

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Excel to CSV Converter

Convert Excel (XLSX) files to CSV instantly in your browser. Free Excel to CSV converter, no upload required.

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Chart Generator (Bar / Line / Pie)

Generate beautiful bar, line, and pie charts from any data. Free online chart generator with PNG export.

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Histogram Generator

Generate histograms from any numeric dataset. Free histogram tool with bin selection and PNG export.

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Correlation Heatmap Generator

Generate correlation heatmaps for any dataset. Free online heatmap with Pearson correlation matrix.

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Survey Results Analyzer

Upload survey responses and get instant breakdowns, charts, and key insights. Free survey analysis tool.

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AI Dataset Summary Generator

Upload a CSV and get an instant AI-generated summary with key statistics, patterns, and suggested next analyses. Free.

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