Reckon the real cost before you buy.
Free, independent calculators that help you reckon the real cost of a big purchase before you buy.
The calculators
Big purchases, reckoned honestly.
Each tool answers one expensive question with your own numbers, shows every assumption, and runs in your browser.
- Home · United StatesWill Your Freeze Dryer Pay Off?Enter your model, batches and power rate and see how many months until a home freeze dryer pays for itself.50 + DCstate electricity rates (EIA)freeze dryer payback calculator →
- Home · Garage · BasementDoes a Golf Simulator Fit Here?Check your ceiling, room width, depth and projector distance against your own height before you buy any gear.To scaleside-view room diagramgolf simulator room size calculator →
- Brasil · PortuguêsCalculaImport (Português)Calculadora de custo de importação no Brasil: impostos, ICMS, Remessa Conforme e despachante.27UFs com alíquota de ICMSAbrir calculadora →
How we work
Numbers first. No sales pitch.
- It runs in your browser.The math runs on your device, instantly. No account, no email wall before the answer.
- Every assumption is visible and editable.Defaults come from manufacturer specs and public data. Estimates are labeled as estimates.
- Links never change the math.Some pages may carry affiliate or sponsor links, always disclosed. The result is the same either way.