Bring the material list together.
Collect estimates from any of the 100 calculators. Keep their inputs and formulas together, then choose exactly which cost line contributes to your budget.
$0
Selected USD budget only. Each estimate starts excluded; choose one cost result from each estimate you want included. Do not include both a complete project total and its component costs.
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A material list you can audit
Start in a calculator, enter the actual product dimensions and yields, give the estimate a project label, and choose Save to project. Each snapshot records its numerical inputs, base-unit results, save time and formula. Use separate labels for rooms, product alternatives or work stages.
Return here to reopen the saved inputs, inspect the captured results or export them. Reopening recalculates with the current tool; the stored snapshot remains unchanged until you save another estimate. A supplier quote can therefore be compared with the original calculation assumptions rather than an unexplained total.
Include costs deliberately
Quantities from different materials are not automatically combined. Two bags of different grout are not interchangeable, and a gallon total is not a single order when the products differ. The budget includes only the USD metric you explicitly select from each snapshot. An estimate without a USD result remains a quantity reference.
Avoid choosing a room flooring total and the same flooring material subtotal in a second snapshot. The tool cannot know whether two saved estimates represent alternatives or additional work. Taxes, delivery, labor and contingency appear only where the selected cost result includes them.
Local storage and backups
JSON preserves editable project snapshots; CSV is a flat report. Importing a JSON backup merges records with new identifiers and skips existing identifiers rather than overwriting them. Removing a snapshot deletes it from this browser’s project; a prior exported backup can restore it. Other people using this browser profile may be able to see saved estimates.
Private browsing, browser settings or storage limits can prevent saving. Watch for the confirmation or error message after saving. JICWH does not provide a cloud backup, account sync or a claim that a locally saved estimate is confidential. See the project storage privacy details.