Business & Marketing Tools

Margin and markup, break-even, ROAS, seller fees, UTM links and search result previews – free calculators and tools for online shops and marketers.

A margin calculator with markup, break-even calculator, selling price calculator, marketplace selling fees, ROAS, ACOS, CPA, CPM, CPC and CTR, conversion rate and customer lifetime value. Plus a unit price calculator, volume discount tiers, UTM builder, URL slug generator, keyword combiner, SERP preview and Flesch reading ease.

67 tools

Most used

Margin calculatorMargin calculator: enter cost or price plus margin, markup or profit and get the rest – with totals by quantity and a margin table for volume price tiers.
Freight Class Calculator (density-based)Freight class calculator: enter the dimensions and weight of a pallet or crate to get its density in lb/ft³ and the LTL freight class on the 13-step NMFC scale.
NPS Calculator (Net Promoter Score)NPS calculator: enter the number of promoters, passives and detractors or paste raw 0–10 scores to get the Net Promoter Score, group shares and the working.
UTM builderAdd UTM parameters to links: utm_source, utm_medium, utm_campaign and more, correctly encoded, existing parameters kept. Campaign URL builder with typo checks.
Email signature generatorCreate an email signature: enter your name and contact details, pick a style, preview it and copy it as formatted text or HTML. Free, no sign-up needed.
ROI calculatorROI calculator: return on investment, profit and annualized ROI for any holding period, plus a DuPont mode splitting ROI into profit margin and asset turnover.
Gantt Chart MakerFree online Gantt chart maker: tasks with start and end dates, dependencies, week numbers and weekends. Export as PNG, SVG or CSV for Excel. No sign-up.
Break-even calculatorBreak-even point calculator for small businesses: units and sales revenue to break even from fixed costs, price and variable cost, plus a target profit.

All tools

Commission CalculatorCommission calculator: work out the commission from sales and a percentage, the sales needed for a target payout, or tiered commission with several rates.
IRR calculatorIRR calculator: enter your cash flows to get the internal rate of return, net present value at your discount rate, MIRR and the payback period, with a table.
SEO Checker: Analyze Any Web Page for FreeSEO checker for any URL: title, meta description, H1, canonical, hreflang, noindex, Open Graph, structured data and alt text – with a score and clear fixes.
Eisenhower matrix template: sort tasks by urgent and importantFree Eisenhower matrix template: enter tasks with importance and urgency, let them sort into four boxes automatically and save the matrix as a PNG to print.
Pallet calculator: boxes per palletPallet calculator: work out boxes per pallet, layers, height and weight for euro, industrial and US pallets, plus pallets needed and loading metres. Free.
Conversion rate calculatorCalculate your marketing conversion rate from visitors and conversions, plus average order value and revenue per visitor – or the traffic you need for a goal.
Invoice due date calculatorInvoice due date calculator: find the due date from invoice date and payment term, from month end or moved to a business day, plus the discount date.
ROAS calculatorCalculate ROAS as a ratio and a percentage, plus ACOS, CPA and your break-even ROAS from your margin – using the Google Ads and Amazon Ads definitions.
Engagement rate calculator: by followers, reach or viewsEngagement rate calculator: likes, comments, shares and saves relative to followers, reach or views. With a post list from Excel and a target calculation.
Unit price calculatorCompare 2–4 package sizes by price per ounce, fluid ounce, 100 g, kg or liter. Shows the best deal and how much you save in percent – oz, lb, g, mL, L or count.
Volumetric weight calculatorVolumetric weight calculator: enter length, width, height and divisor to get the chargeable weight for parcels or air freight and compare it with actual weight.
OEE CalculatorOEE calculator for machines: enter planned time, downtime, ideal cycle time and part counts to see availability, performance, quality and lost minutes. Free.
A/B test calculatorA/B test calculator: compare conversion rates of two variants and get the uplift, p-value, confidence interval and the sample size your test really needs.
ABC Analysis CalculatorABC analysis calculator: sort items, customers or suppliers by value, get cumulative shares and split them into A, B and C classes. Free, no spreadsheet needed.
APY calculatorAPY calculator: convert the nominal annual rate (APR) into the effective annual yield (APY) for daily, monthly or continuous compounding, and back.
Basis point calculatorBasis point calculator: convert basis points (bps) to percent and back, find a rate change in bps, and work out the money value of a bps move on any amount.
Cap rate calculatorCap rate calculator: find the capitalization rate from net operating income and property value, or derive the value from a rate.
CAPM CalculatorCAPM calculator for the expected return from the risk-free rate, beta and expected market return, with the market risk premium and the formula worked out.
CBM calculatorCBM calculator for shipping: enter length, width and height in cm, mm, m, inches or feet plus the number of cartons and get cubic meters and cubic feet.
Contribution Margin CalculatorContribution margin calculator from price and variable costs: per unit, contribution margin ratio, total, operating profit and break-even quantity with working.
Cost of Goods Sold CalculatorCost of goods sold calculator: COGS from beginning inventory, purchases and ending inventory, plus COGS percentage, gross profit and markup, or a target price.
CPM, CPC and CTR calculatorCalculate CPM, CPC and click-through rate (CTR) from cost, impressions and clicks – or work backwards to budget, impressions and clicks from CPM and CTR.
Current Ratio CalculatorCurrent ratio calculator with quick ratio and cash ratio from balance sheet items: cash, receivables, inventory and current liabilities, with the steps shown.
Customer lifetime value calculatorCalculate customer lifetime value (CLV/LTV) from order value, purchase frequency, lifespan or churn and margin – with CAC, LTV:CAC ratio and payback period.
Debt to equity ratio calculatorDebt to equity ratio calculator: divide total debt by shareholders’ equity and also get the debt and equity shares of total capital.
Decision matrix calculatorBuild a decision matrix online: weight your criteria, score the options, see the winner, how stable it is and save the chart as PNG. Free, no sign-up.
Depreciation CalculatorDepreciation calculator for straight-line, declining balance and sum-of-the-years-digits: yearly schedule with book value and steps, no country tax rules.
Dividend payout ratio calculatorDividend payout ratio calculator: divide dividends by earnings, in total or per share, and get the retention ratio alongside, with the formula.
Early payment discount calculatorEarly payment discount calculator for terms like 2/10 net 30: discount, amount to pay and the annualized cost of skipping the discount, with the formula.
Earnings per share calculatorEarnings per share calculator: divide net income less preferred dividends by the weighted average share count, with an optional P/E ratio.
EBITDA CalculatorEBITDA calculator from net income, interest, taxes and D&A, or from revenue and operating costs, with EBIT and EBITDA margin and the formulas worked out.
Economic order quantity calculatorEconomic order quantity (EOQ) calculator: balance ordering and holding costs, see orders per year, total cost, reorder point and safety stock. Free and instant.
Employee Turnover Rate CalculatorEmployee turnover rate calculator: enter separations and headcount for a month, quarter or year to get the rate, the annual figure and retention. Free.
Flesch Reading Ease CalculatorPaste your text to get the Flesch Reading Ease score, the score band, words per sentence and syllables per word – plus the German version by Amstad.
Freelance Rate CalculatorFreelance rate calculator: find the minimum hourly and day rate from your target income, business costs, time off and billable hours – with a utilization table.
Inventory Turnover CalculatorInventory turnover calculator: get your turnover ratio, days in inventory, days of supply and carrying-cost rate from cost of goods sold and stock levels.
Kanban BoardFree Kanban board in your browser: move columns and cards by drag and drop or keyboard, set WIP limits, export as JSON or CSV. No account, data stays local.
Keyword combinerCombine up to 4 word lists into every keyword combination – with list order, separators and match types "phrase match" and [exact match]. No duplicates.
Labor Rate CalculatorLabor rate calculator for trades and service firms: work out the net hourly billing rate from wage, wage on-costs, overhead and profit margin. Free, no sign-up.
Marginal cost calculatorMarginal cost calculator: divide the change in total cost by the change in quantity and compare average cost at both quantities.
Meta Tag GeneratorMeta tag generator: create the title, meta description, canonical, Open Graph and X card tags for your page head – ready to copy, with a check of the lengths.
Net Present Value CalculatorNet present value calculator: enter the initial investment, discount rate and yearly cash flows to get present values, the NPV and the steps shown in full.
Payback period calculatorPayback period calculator: simple and discounted payback of an investment from cash flow, growth and discount rate – with net present value and a table.
Price elasticity of demand calculatorPrice elasticity of demand calculator: midpoint and point method from old and new price and quantity, with elasticity type, revenue effect.
Price per sheet calculatorCompare toilet paper by price per sheet and per 100 sheets, ply-adjusted. Also for paper towels, laundry detergent per load, diapers and pods. Free.
Pros and cons list maker: weigh a decision and see the resultPros and cons list maker: add arguments with a weight from 1 to 5 and see at once which side wins. Save the chart as a PNG – free, with no sign-up.
Rental Yield CalculatorRental yield calculator: gross yield, net yield and price-to-rent ratio from purchase price, buying costs, monthly rent and expenses, plus the payback in years.
Return on equity calculatorReturn on equity calculator: work out ROE from net income and shareholders’ equity, optionally using average equity, with the formula.
SaaS Metrics CalculatorSaaS metrics calculator: work out MRR, ARR, churn, net revenue retention, CAC, LTV, LTV:CAC and payback from your monthly numbers, with steps and benchmarks.
Selling Fee Calculator for Etsy, eBay, Amazon and ShopifyCalculate Etsy, eBay, Amazon and Shopify seller fees: commission, payment processing, payout, profit and margin per sale – with sources, as of 09/2026.
Selling price calculatorWork out the selling price of a product from cost, shipping, packaging, percentage selling fees and your target margin – fees are solved correctly.
SERP Preview Tool With Pixel WidthEnter a title tag and meta description to preview the search result – with pixel width, character count and a note when the snippet is likely truncated.
Sharpe ratio calculatorSharpe ratio calculator: divide the excess return over the risk-free rate by volatility, also annualised from monthly, weekly or daily figures.
Stock average calculatorStock average calculator: enter up to five purchases with shares and price and get the weighted average cost per share plus total invested, with the working.
SWOT analysis maker: template with chartMake a SWOT analysis online: enter strengths, weaknesses, opportunities and threats, get strategy questions and save the four-box chart as PNG. Free, private.
TAM SAM SOM CalculatorTAM SAM SOM calculator: derive total, serviceable and obtainable market from customers and price or a market volume, with steps, example and CSV export.
URL slug generatorTurn headlines into clean URL slugs: lowercase, hyphens, accents removed, stop words optional. Paste several titles at once and copy all slugs in one go.
Volume discount calculatorTiered pricing calculator: unit price, total and savings for any quantity, the next price break and whether ordering more is cheaper. All-units or incremental.
WACC CalculatorWACC calculator for the weighted average cost of capital from equity, debt, cost of equity, cost of debt and tax rate, with the formula worked step by step.