Every number that runs the business.
SaaS gauges, marketing ROI, payroll math, and HR comp — model the P&L before the board meeting.
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All 100 business calculators, A-Z
Filter by name, or open a topic to see what's inside. Every tool in this category is listed here.
HR & Payroll · 18
Marketing Metrics · 17
Operations · 33
SaaS Metrics · 14
Sales & Revenue · 18
Hand-picked starters.
Unit economics, gauged live.
ARPU, churn, and CAC drive LTV. Slide the inputs — the gauge dial shifts red → gold → emerald as you cross the 1.5x and 3.0x thresholds.
LTV to CAC Ratio Calculator
Lifetime value over customer acquisition cost — the single number that says whether the unit economics work.
Churn Calculator
Logo vs revenue churn, monthly vs annual cohort decay — see what each percentage point costs.
2.4% mo→ 25% annual cohort lossGross to take-home, line by line.
Drag annual gross salary and watch the deductions stack — federal, state, FICA, 401(k), and healthcare — to the actual take-home number.
Take-Home Pay Calculator
Every line item the paycheck swallows. Move the gross — watch the bars rebalance live.
1099 vs W-2 Net Pay
Compare contractor vs employee net take-home at the same gross. Self-employment tax vs deduction shield.
Bigger than one calculator? Follow the flow.
Multi-step paths that string the right business tools together in the order most people actually use them — with your numbers carried from step to step.
ROAS, CPM, CAC math — daily.
The return-on-ad-spend benchmark most teams treat as healthy — find your break-even.
ROAS Calculator
Return on ad spend by channel — what each dollar of paid actually generates.
4.2x$4.20 revenue per $1 spentCPM / CPC
Cost per thousand impressions and cost per click — comparison across networks.
$8.40 CPM~$0.47 CPC at 1.8% CTRMargin, markup, break-even.
Profit Margin Calculator
Drag revenue, COGS, and opex — see the net margin pie shift and the dollar profit settle live.
Break-Even
Units to sell before contribution-margin covers fixed costs.
~2,400 units$48k fixed · $20 CMThroughput, inventory, capacity.
Inventory Turnover
Annual COGS over average inventory — turns per year, days on hand, and where you sit vs your industry benchmark.
Capacity Utilization
Drag employees, shifts, and hours — see weekly load vs. capacity with the headroom band live.
Two good options? See the head-to-head.
The business vocabulary, decoded.
Every definition links to the calculator that puts the term to work. Browse the full glossary →
LTV = ARPU × gross margin % ÷ monthly churnCustomer lifetime value — what one customer is worth over their whole life, the number every CAC gets judged against.Margin % = (revenue − COGS) / revenueGross margin — the share of every sales dollar left after direct costs, before overhead.Inventory turns = COGS / average inventoryHow many times a year your stock sells through — higher turns mean less cash sleeping on the shelf.Payroll and hiring rules where you operate, for the year you file.
Frequently asked questions
Which calculators do I need to run a P&L review?
Margin + Break-Even + Burn Rate + Runway give you the contribution-margin and time-to-zero picture. Add CAC and LTV for unit-economics health. The Business Metrics Fundamentals guide explains how the five numbers connect.
What's the difference between CAC and SaaS CAC payback?
CAC is the dollars spent to acquire one new customer (marketing + sales / new customers). SaaS CAC payback is the number of months of gross profit that customer must generate before they pay back the CAC. Healthy SaaS payback is <12 months.
Are the payroll calculators US-only?
The federal Payroll Tax calculator is US-only (FICA, FUTA, federal withholding). The Employee Cost and Contractor vs Employee calculators expose the underlying tax-rate inputs so you can model any jurisdiction.
Do these tools handle multi-currency?
Most accept currency-agnostic inputs (you choose the currency on entry). The Currency Converter on the Daily Life hub handles live cross-rates if you need to translate between two currencies first.
Which numbers should a brand-new business track first?
Start with Break-Even and Profit Margin — they tell you the sales volume and pricing you need to stop losing money. Once you're consistently profitable, add CAC and LTV to confirm each customer is worth more than it costs to acquire.
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