Business Tools
Run the numbers for your business: margins, breakeven, pricing, ROI and commission calculators.
A/B Test Sample Size Calculator
Work out how many visitors per variant your A/B test needs. Set baseline rate, the lift you want to detect, power and significance to size the test.
A/B Test Significance Calculator
Check if your A/B test result is statistically significant. Enter visitors and conversions for each variant to get the p-value, z-score and verdict.
Break-even Calculator
Find your break-even point fast. Enter fixed costs, price and variable cost per unit to see the units and revenue needed to cover your costs.
Break-even Units Calculator
Find how many units you must sell to break even, hit a target profit, and see your margin of safety from fixed costs, price and variable cost.
Burn Rate Calculator
Calculate your startup's monthly burn rate from a change in cash. See net and gross burn per month and the runway left from your ending cash balance.
CAC Calculator
Calculate customer acquisition cost from your marketing and sales spend and new customers. Add lifetime value to see your LTV:CAC ratio instantly.
Churn Rate Calculator
Calculate customer churn and retention from customers lost. Add MRR to get gross and net revenue churn, including net negative churn, in your browser.
Cohort Retention Calculator
Turn signup cohorts into a retention heatmap. Enter each cohort's starting size and users retained per period to see retention, churn, and a weighted average.
Commission Calculator
Calculate sales commission from a sale amount and rate. Add an optional base salary to see total earnings, with results in your currency.
Conversion Funnel Calculator
Map your funnel stage by stage to see step conversion, drop-off, and overall conversion rate. Spot the biggest leak and add revenue to see ROI.
Conversion Rate Calculator
Calculate your conversion rate from visitors and conversions. Add spend and revenue to see cost per conversion and revenue per conversion instantly.
CPC Calculator
Free cost per click calculator. Enter any two of ad spend, clicks and CPC to solve the third, and add impressions to see your click-through rate.
CPM Calculator
Calculate CPM, cost or impressions for any ad campaign. Enter any two of spend, impressions and CPM and the calculator solves the third instantly.
CTR Calculator
Free click-through rate calculator. Enter any two of clicks, impressions and CTR percent and it solves the third instantly, with no signup needed.
Customer LTV Calculator
Calculate customer lifetime value two ways. Use order value and frequency, or ARPU and monthly churn, to estimate margin-adjusted LTV.
Discount Calculator
Calculate a discount fast. Enter a price and percent off to get the final price and savings, or enter a sale price to find the percentage discount.
eCPM Calculator
Free eCPM calculator. Enter any two of ad revenue, impressions and eCPM to solve the third and see your effective earnings per 1,000 impressions.
Email Spam Score Checker
Paste an email subject and body to get a spam risk score, grade and the exact words and patterns that trip filters. Runs in your browser.
Engagement Rate Calculator
Free social media engagement rate calculator. Enter engagements and followers or reach to get your engagement rate as a percentage, with no signup.
Invoice Total Calculator
Add up an invoice in seconds. Enter line items, a discount, tax rate and shipping to get the subtotal, tax amount and grand total, all rounded to cents.
Margin vs Markup Calculator
Convert between profit margin and markup instantly. Enter cost plus a price, margin or markup and get the rest, with profit in dollars. Free and private.
Marketing Budget Allocator
Split a marketing budget across channels by weight or by expected ROAS. See spend, share and projected revenue per channel plus your blended ROAS.
Markup Calculator
Calculate markup and margin from cost and price, or find the selling price from a target markup percent. Free markup calculator with profit per unit.
Media Plan Builder
Plan ad spend across channels and forecast impressions, clicks, conversions, revenue and ROAS. Add each channel and see a full media plan with blended totals.
Meeting Cost Calculator
See the real cost of a meeting from attendees, hourly rate and length. Get total cost, cost per minute and cost per person to justify shorter meetings.
Net Promoter Score Calculator
Calculate your Net Promoter Score from promoter, passive and detractor counts. See your NPS, the promoter and detractor percentages and a rating band.
Payback Period Calculator
Find your CAC payback period in months. Enter acquisition cost, monthly revenue per customer and gross margin to see how fast you recover CAC.
Percentage Calculator
Free percentage calculator. Find a percent of a number, work out what percent one number is of another, and calculate percentage change.
Phone Number Formatter
Format a phone number into a clean national, E.164, or international layout. Paste any messy number, pick a style, and copy the result. Free and private.
Pricing Tier Builder
Build SaaS pricing tiers and see MRR, ARR, blended ARPU and which plan drives the most revenue. Add an annual discount and revenue share per tier.
Profit Margin Calculator
Enter a cost and selling price to instantly see your profit, gross margin percentage and markup percentage. Free, fast and works in any currency.
Random Team Generator
Paste a list of names and split them into random, balanced teams. Choose how many teams, shuffle fairly, and copy the result. Free, private, no signup.
ROAS Calculator
Enter ad revenue and spend to see your ROAS as a ratio and percentage, the profit, and the break-even ROAS for your gross margin. Free and instant.
Runway Calculator
Calculate your startup's cash runway in months. Enter cash on hand and net burn, or monthly expenses and revenue, to see how long your money lasts.
SaaS Metrics Dashboard
Calculate the core SaaS KPIs at once. Enter customers, ARPU, churn and CAC to get MRR, ARR, LTV, LTV to CAC, CAC payback, NRR and quick ratio.
SaaS MRR Calculator
Calculate SaaS MRR and ARR from your customer count and ARPU. Add new, expansion and churned MRR to see net new MRR and your monthly growth rate.
Social Media Character Counter
Free social media character counter. Check your post against X, Instagram, LinkedIn, TikTok, YouTube and more limits and see characters left.
Startup Runway Calculator
Calculate your startup runway in months. Enter cash on hand, monthly burn and revenue to see net burn and how long your money lasts.
Unit Price Calculator
Compare package sizes by price per unit to find the best value. Enter price and quantity for each option and see the cheapest buy highlighted.
UTM Bulk Builder
Build tagged campaign URLs in bulk. Add a base link and rows of source, medium and campaign to get UTM links you can copy or export to CSV.
YouTube Earnings Calculator
Free YouTube earnings calculator. Estimate ad revenue from views and RPM or CPM, with a low to high range, so you can forecast channel income.