Business Tools
Generate invoices, quotes, receipts and purchase orders as PDFs, track timesheets and calculate burn rate, churn, LTV and MRR — all locally in your browser.
63 free tools
Quotation & Estimate Generator
Create a professional quotation or estimate with line items, tax, discount and validity date, then download it as a print-ready PDF. Free, no signup.
Receipt Generator
Make an itemised payment receipt with receipt number, payment method, tax, total and change due, then download it as a PDF. Free and fully offline.
Purchase Order Generator
Create a numbered purchase order with vendor, ship-to address, delivery date, line items and terms, then export it as a professional PDF. Free and private.
Pay Stub Generator
Build a payslip template with your own earnings and deduction lines, year-to-date columns and computed net pay, exported as a PDF. Every figure is yours.
Timesheet Calculator
Add up clock-in and clock-out times minus unpaid breaks to get weekly hours in decimal and hh:mm, with overtime threshold, multiplier and gross pay.
Meeting Cost Calculator
Work out what a meeting really costs from attendee count, blended hourly rate and duration, with a live ticking counter and the annual cost if it recurs.
Burn Rate & Runway Calculator
Calculate gross burn, net burn and how many months of runway your cash buys, with optional monthly revenue and expense growth modelled month by month.
Churn Rate Calculator
Calculate customer churn, revenue churn, retention rate, net revenue retention and average customer lifetime from your start-of-period figures.
Customer Lifetime Value Calculator
Calculate LTV from ARPU, gross margin and churn, then check it against your CAC for the LTV:CAC ratio, payback period and a health band.
MRR & ARR Calculator
Normalise monthly, quarterly and annual plans into a single MRR and ARR, and break month-over-month movement into new, expansion, contraction and churn.
CPM Calculator
Solve for CPM, impressions or ad spend, then add clicks and conversions to get CTR, CPC, conversion rate and cost per conversion. Free and offline.
Employee Cost Calculator
Work out the true annual cost of an employee — salary plus payroll tax, pension, benefits, equipment and overhead — as annual, monthly and hourly figures.
Payback Period Calculator
Find how long an investment takes to pay for itself from a cash-flow series, both simple and discounted, with fractional-period interpolation and NPV.
CAC Calculator
Calculate blended and paid customer acquisition cost, the LTV:CAC ratio and CAC payback in months from your sales and marketing spend. Free and offline.
Net Revenue Retention Calculator
Calculate net revenue retention, gross revenue retention and logo retention from expansion, contraction and churn figures, plus a 12-month cohort projection.
ARPU Calculator
Calculate ARPU and ARPPU from revenue and user counts, with free-to-paid conversion and automatic monthly, quarterly and annual normalisation. Free and private.
SaaS Magic Number Calculator
Calculate the SaaS magic number from quarterly revenue and sales and marketing spend, with the standard 0.5 / 0.75 interpretation bands and implied CAC payback.
Rule of 40 Calculator
Calculate your Rule of 40 score from revenue growth plus EBITDA, free cash flow or net margin, and see exactly what it would take to reach 40.
Conversion Rate Calculator
Calculate conversion rate and analyse a multi-step funnel with step-to-step rates, drop-off counts and the traffic you would need to hit a conversion target.
ROAS Calculator
Calculate ROAS, ACOS, break-even ROAS and the maximum CPA your margin supports, plus profit after ad spend. Free, instant and fully browser-based.
A/B Test Significance Calculator
Test whether an A/B result is statistically significant with a two-proportion z-test: p-value, z-score, confidence interval and relative uplift. Free tool.
NPS Calculator
Calculate your Net Promoter Score from group totals or a full 0–10 response distribution, with a margin of error, likely range and a distribution chart.
Equity Dilution Calculator
Model a funding round on your cap table: post-money valuation, price per share, investor ownership and founder dilution, including the option pool shuffle.
Vesting Schedule Calculator
Build a share or option vesting schedule with a cliff, see exactly how much is vested on any date, and value the spread between fair market value and strike.
Business Valuation Calculator
Value a business three ways: earnings multiple, discounted cash flow with a Gordon growth terminal value, and net asset value. Compare the resulting range.
EBITDA Calculator
Calculate EBITDA from net income or operating income, add back one-off costs for adjusted EBITDA, and get the margin plus an enterprise value at any multiple.
Contribution Margin Calculator
Work out contribution margin per unit, CM ratio, break-even units and the volume needed for a target profit — with a weighted multi-product sales mix.
Working Capital Calculator
Calculate working capital, current ratio, quick ratio and the cash conversion cycle from DSO, DIO and DPO using your own balance sheet figures.
Inventory Turnover Calculator
Calculate inventory turnover from COGS and average inventory, plus days inventory outstanding, sell-through rate and GMROI, annualised from any period.
EOQ Calculator
Find the economic order quantity with EOQ = √(2DS ÷ H), plus orders per year, reorder point, order cycle length and total annual inventory cost.
Wholesale Price Calculator
Build a wholesale and retail price ladder from unit cost, with margin, markup and profit per unit at every tier plus the deepest discount you can offer.
PayPal Fee Calculator
Work out the fee and net amount on a payment, and the exact amount to charge so you receive a specific sum, using fully editable percentage and fixed rates.
Etsy Fee Calculator
Add up listing, transaction, payment processing and offsite ads fees, subtract your costs, and see net profit, margin and the break-even item price.
PTO Accrual Calculator
Project paid time off balances from an hourly, per-pay-period or annual accrual rate, with accrual caps, carry-over limits and hours-to-days conversion.
Severance Pay Calculator
Estimate a severance package from weeks per year of service, with pro-rated partial years, caps, pay in lieu of notice and accrued leave payout.
Employee Turnover Rate Calculator
Calculate turnover as separations ÷ average headcount, split into voluntary and involuntary, annualised from any period, with replacement cost.
Proforma Invoice Generator
Create a proforma invoice PDF with line items, HS codes, incoterms, discount, tax, freight, bank details and the amount written out in words.
Rent Receipt Generator
Generate rent receipts as a PDF with landlord and tenant details, period covered, amount in words and a stamp block — up to a full year in one document.
SaaS Quick Ratio Calculator
Calculate the SaaS quick ratio from new, expansion, contraction and churned MRR across several months, with net new MRR, gross churn and net retention.
Cohort Retention Calculator
Paste a cohort grid and get the retention triangle, average retention curve, month-1 and month-12 retention and the implied average customer lifetime.
Cash Conversion Cycle Calculator
Work out DIO, DSO, DPO and the cash conversion cycle from revenue, COGS and balance sheet figures, plus the cash a shorter cycle would release.
Price Elasticity of Demand Calculator
Calculate midpoint arc and point price elasticity from two price and quantity observations, classify demand and find the profit-maximising price.
Erlang C Calculator
Size a contact centre with Erlang C: offered load in erlangs, agents needed for your service level, average speed of answer, occupancy and shrinkage.
OEE Calculator
Calculate Overall Equipment Effectiveness from shift time, downtime, cycle time and piece counts, with TEEP and the six big losses broken out in minutes.
Takt Time Calculator
Calculate takt time from available production time and customer demand, then get the stations required, line balance efficiency and idle time per cycle.
Safety Stock Calculator
Calculate safety stock with the full demand and lead-time variability formula, with Z from an inverse normal, plus the reorder point and days of cover.
ABC Inventory Analysis Calculator
Paste SKUs with annual usage and unit cost to rank them by consumption value and classify them into A, B and C at editable Pareto cut-offs.
GMROI Calculator
Calculate GMROI per category from sales, COGS and average inventory at cost, with turns, sell-through, weeks of supply and a totals comparison row.
Pipeline Coverage Calculator
Weight your pipeline by stage probability and get the coverage ratio against the quota gap, plus the new pipeline needed to close it at your win rate.
Sales Quota Attainment Calculator
Work out quota attainment and pay it through a tiered commission schedule with accelerators, showing the payout per band and the effective rate on revenue.
BOM Cost Calculator
Roll up a two-level bill of materials with scrap, labour, overhead and freight to a landed unit cost, target sell price and the top cost drivers.
Credit Note Generator
Create a credit note PDF against an original invoice: line items, tax summary by rate, credit total, reason code and the balance left on the invoice.
Delivery Note Generator
Make a delivery note or packing slip PDF with ship-to and bill-to blocks, ordered versus shipped quantities, carton counts, weights and a signature block.
Statement of Account Generator
Build a customer statement PDF from a list of invoices, with open balances aged into 0-30, 31-60, 61-90 and 90+ buckets and a clear total due.
Expense Report Generator
Build an expense claim PDF with dated lines by category, mileage at your own rate, per diem with a part-day rule, reclaimable tax and a cash advance.
Tiered Pricing Calculator
Compare volume and graduated tiered pricing on one tier table: totals, blended price per unit, the crossover quantity and the margin at each tier.
Subscription Proration Calculator
Work out mid-cycle upgrade and downgrade amounts: unused credit on the old plan, prorated charge on the new one, net due today and the next renewal.
SLA Uptime Calculator
Turn an uptime target into allowed downtime per day, week, month, quarter and year, check achieved uptime, and model composite and redundant availability.
Cost Per Hire Calculator
Calculate cost per hire from itemised internal and external recruiting costs, with cost per funnel stage, time to fill, time to hire and spend against payroll.
Revenue Per Employee Calculator
Calculate revenue and profit per employee, payroll as a share of revenue, the gap to a benchmark, and the headcount a revenue target supports.
Bradford Factor Calculator
Calculate the Bradford Factor for each employee from a dated absence table, with a rolling window, editable trigger points and a ranked CSV export.
FTE Calculator
Convert staff hours into full-time equivalents, roll them up to a team total, and get pro-rata salary and pro-rata holiday for every part-time person.
Salary Increase Calculator
Work out a new salary from a percentage rise or a target figure, the real increase after inflation, mid-year pro-rata pay and multi-year compounding.