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Practical tools. Transparent assumptions.
Clear numbers.
Better decisions.
Price your next sale. Plan a home purchase. Make sense of a business cost. Free calculators that show how the answer was reached.
An example, not a quote
Make the whole payment visible
$3,128.27 / month$400,000 loan · 6.5% fixed · 30 years
Includes $600/month taxes and insurance
Excludes PMI, HOA and other costs
Start with your decision
A useful place for every number.
Resale & inventoryKnow what to pay, what to charge, and what you keep.Home & mortgageCompare payments, upfront costs and the long view.Debt & payoffSee what a different payment changes over time.Saving & investingConnect today's contribution with tomorrow's goal.Business & pricingSeparate revenue, margin and the cost of doing business.Trucking & freightCount paid miles, empty miles and real operating costs.
Go beyond a single answer
Two ways to see the bigger picture.
New workflowCSV Resale Profit AnalyserAnalyse inventory CSV rows locally. Map costs and fees, calculate profit by item, flag low margins, and export estimates without uploading your file.Open tool →New workflowMortgage Offer Comparison CalculatorCompare two fixed-rate mortgage offers over your holding period, including fees, lender credits, interest, principal repaid and remaining balance.Open tool →
Blog & guides
The story behind the numbers.
Real questions, hypothetical examples, and a calculator to make each one your own.
Home buyingWhat an extra $100 a month changes on a mortgageA transparent $300,000 mortgage example: compare payoff time and interest with an extra $100 monthly, then edit the assumptions yourself.Read the worked example →ResaleIs a resale pallet worth buying? Count the unsold itemsWork through a 50-item resale lot with damaged stock, fees and fulfillment costs. See how sell-through changes profit and try the example yourself.Read the worked example →Business & truckingThe empty return trip that changes your cost per mileA worked trucking example separates all miles from paid miles and shows why deadhead changes the break-even rate without changing the truck's total costs.Read the worked example →
Confidence comes from knowing the assumptions.
No account. No hidden inputs. No promises that an estimate is a guaranteed outcome. Review the sources, change the assumptions, and keep the decision yours.
How we check the math →