Use these calculators to test pricing, margin, runway, cash collection, and billing assumptions before changing an operating decision.
Work and pricing
Business Tools
Practical tools for rates, invoices, cash flow, cash runway, profit, pricing, and small business planning.
45 tools liveFree to use
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Tools in this category
Business tools focus on small-business and operator math: cash runway, profit margin, freelance rates, invoice totals, payment terms, agency margin, retainers, client profitability, subscription metrics, dilution, and burn efficiency.
Cash Runway CalculatorUse this cash runway calculator to compare net burn, adjusted expenses, monthly position, and runway before hiring, revenue, or fundraising decisions.OpenSmall Business Cash Flow PlannerUse this small business cash flow planner to check bank-balance runway, 30/60/90 day cash timing, tax reserve, receivables, payables, owner draw, and reserve gap.OpenProfit Margin CalculatorUse this profit margin calculator to compare revenue, cost of goods, operating expenses, gross profit, net profit, markup, break-even revenue, and revenue for target margin.OpenFreelance Rate CalculatorUse this freelance rate calculator to work backward from your take-home income goal, tax reserve, business expenses, billable hours, and time off.OpenInvoice GeneratorUse this invoice generator to choose a currency, calculate line item totals, due date, subtotal, discount, tax, and balance due, then print or save the invoice preview as a PDF.OpenNet Payment Terms CalculatorUse this net payment terms calculator to compare Net 15, Net 30, Net 60, expected delay, annual cash cost, monthly late fee, and net after cash cost.OpenAgency Margin CalculatorUse this agency margin calculator to compare client or agency revenue against delivery hours, blended labor cost, pass-through costs, overhead, labor cost, delivery cost, and operating profit.OpenRetainer Pricing CalculatorUse this retainer pricing calculator to price monthly client work from delivery cost, overhead, target margin, and scope buffer while checking effective hourly revenue and expected profit.OpenClient Profitability CalculatorUse this client profitability calculator to see whether a client, account, or retainer is profitable by comparing revenue per hour, profit per hour, delivery load, support time, tools, and pass-through costs.OpenBurn Multiple CalculatorUse this burn multiple calculator to compare same period monthly net burn, total burn, net new ARR, ARR growth, burn multiple, and cash efficiency before reviewing runway or SaaS growth assumptions.OpenStartup Dilution CalculatorUse this startup dilution calculator to estimate how an investment and option pool change ownership percentages.OpenBreak-Even CalculatorUse this break-even calculator to estimate how fixed costs, price per unit, variable cost per unit, contribution margin, and target profit affect break-even units and revenue.OpenMRR CalculatorUse this MRR calculator to compare same period starting MRR, new-logo MRR, expansion, contraction, churn, net new MRR, ending MRR, MRR growth, and ARR run rate for subscription planning.OpenChurn Rate CalculatorUse this churn rate calculator to compare same period customer churn, revenue churn, retained customers, retained MRR, and retention signals before reviewing MRR, LTV/CAC, runway, and burn.OpenLTV CAC CalculatorUse this LTV CAC calculator to estimate gross profit per month, customer lifetime months, estimated LTV, LTV/CAC ratio, CAC payback, and whether acquisition economics are plausible.OpenContractor Day Rate CalculatorUse this contractor day rate calculator to work backward from income goal, taxes, expenses, and realistic billable days.OpenGoogle AdSense CalculatorToolkit Shelf is independent and is not affiliated with Google or Google AdSense. Use this calculator to compare RPM and CPC revenue scenarios before planning content, traffic, or monetization targets.OpenCPC and CPM CalculatorUse this CPC and CPM calculator to compare response efficiency and reach cost before moving budget between campaigns, channels, or creative tests.OpenCPA Calculator - Cost per AcquisitionUse this CPA calculator to compare campaign-level acquisition efficiency before scaling, pausing, or reallocating paid budget.OpenConsulting Fees CalculatorUse this consulting fees calculator to turn scoped hours into a proposal price with overhead, buffer, expenses, and discount visible.OpenLerner Index CalculatorUse this Lerner Index calculator to screen SKU pricing power before reviewing elasticity, competitor pricing, contracts, or price-change scenarios.OpenGRP CalculatorUse this GRP calculator to compare awareness campaign media weight before reviewing CPM, CPC, conversion quality, audience overlap, or budget shifts.OpenConversion Rate CalculatorUse this conversion rate calculator to compare funnel, landing page, campaign, or signup performance without mixing event definitions.OpenCTR CalculatorUse this CTR calculator to compare creative, placement, email, search, or social performance while keeping click and impression definitions consistent.OpenAverage Collection Period CalculatorUse this average collection period calculator to spot slower collections before they distort cash-flow, runway, or credit-policy decisions.OpenAdditional Funds Needed CalculatorUse this additional funds needed calculator to test whether projected growth is self-funding or likely to require new debt, equity, or working-capital changes.OpenAccumulated Depreciation CalculatorUse this accumulated depreciation calculator to reconcile book value, replacement timing, and asset schedule assumptions before budget or reporting decisions.OpenBurndown Chart CalculatorUse this burndown chart calculator to check whether a sprint or fixed-scope delivery plan is ahead, on track, or at risk before changing scope or dates.OpenEVM CalculatorUse this EVM calculator to separate cost risk from schedule risk before project recovery decisions are made.OpenDirect Material Price Variance CalculatorUse this direct material price variance calculator to isolate supplier unit-price movement from usage, mix, or quantity effects.OpenFIFO Calculator for InventoryUse this FIFO inventory calculator to model oldest-first inventory depletion before reviewing margin, stock value, or accounting scenarios.OpenHHI CalculatorUse this HHI calculator to screen market concentration and merger scenarios before doing a deeper competition, pricing, or strategy review.OpenLabor Cost CalculatorUse this labor cost calculator to see the full employer cost of staffing beyond the base hourly wage.OpenPayback Period CalculatorUse this payback period calculator as a first-pass screen for investment recovery time before deeper capital budgeting.OpenProfitability Index CalculatorUse this profitability index calculator to compare value created per dollar invested when capital budgets are limited.OpenDecision Matrix CalculatorUse this decision matrix calculator to rank options with visible weights, tradeoffs, and scores before a business, product, or operations decision.OpenPrioritization Score CalculatorUse this prioritization score calculator to compare ideas with RICE or ICE scoring before committing roadmap, automation, or operations capacity.OpenMeeting Cost CalculatorUse this meeting cost calculator to price recurring meetings, planning calls, reviews, and syncs before adding another calendar commitment.OpenPolicy Exception Cost CalculatorUse this policy exception cost calculator to price special-case workflows before adding more manual approvals, overrides, refunds, or exception reviews.OpenKPI Guardrail CheckerUse this KPI guardrail checker to make continue, watch, and rollback thresholds visible before a launch, workflow change, vendor rollout, or automation test.OpenPricing Change Impact CalculatorUse this pricing change impact calculator to compare current price with proposed price before raising prices, discounting, changing packages, or testing a new offer.OpenBuild vs Buy CalculatorUse this build vs buy calculator to compare internal build cost with vendor purchase cost before committing team time or budget.OpenAutomation ROI CalculatorUse this automation ROI calculator to estimate whether a workflow automation project can pay back after labor, software, setup, maintenance, and rework assumptions.OpenVendor Comparison CalculatorUse this vendor comparison calculator to rank vendor options with visible cost, fit, support, integration, risk, and weighting assumptions.OpenManual Review Cost CalculatorUse this manual review cost calculator to estimate review workload, automation savings, and payback before changing an operations workflow.Open
How to use this hub
Pick the tool by task, then check the assumptions.
Category pages are meant to be useful on their own, not just lists. These notes explain what the group covers, where the limits are, and which pages deserve extra care.
Cash runway, small-business cash flow, profit margin, freelance rate, invoice generator, payment terms, agency margin, retainer pricing, client profitability, break-even, MRR, churn, LTV/CAC, burn multiple, startup dilution, and contractor day-rate pages are live now.
Taxes, contracts, payment terms, collections, refunds, payroll, legal requirements, and accounting treatment can change the real answer.
Common tasks
Start with the job, then open the matching tool.
These task groups make the category useful as a hub page, not just an alphabetized list of links.
Estimate runway, burn multiple, payment terms, client profitability, and how delayed cash affects the business.
Model profit margin, break-even points, retainers, agency margin, freelance rates, and contractor day rates.
Check MRR, churn, LTV/CAC, dilution, and operating assumptions before a planning conversation.