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Tools
CALCULATORS & CONVERTERS

Shopping · Page 2

Convert prices and estimate an overseas order with shipping, fees and any local charges you enter.

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A tool can belong to several categories. All tools lists each calculator once.

Construction

Paint Calculator

Construction & DIY · Design & Drawing · Shopping

Estimate paint for a rectangular room from wall dimensions, excluded wall area, coats and entered coverage. Include the ceiling optionally and round to whole cans.

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Tile Calculator

Construction & DIY · Design & Drawing · Shopping · Learning & Education

Estimate tile and pack quantities from a rectangular room and tile size. Compare an area budget with two simple grid orientations and add your own allowance.

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Cooking

Baking Pan and Batter Scaling Calculator

Cooking & Kitchen · Shopping · Design & Drawing

Convert a known batter mass between round or rectangular pans, including pan counts and desired batter depths.

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Crafts

Fabric Yardage and Rectangle Cutting Calculator

Crafts & Sewing · Shopping · Design & Drawing

Plan identical rectangular fabric pieces with seam allowances, shrinkage, selvages and optional 90-degree rotation.

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Design

Print Sheet Imposition Calculator

Design & Drawing · Work & Productivity · Shopping

Compare two uniform rectangle orientations and estimate sheets with margins, bleed and cutting gaps.

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Food

Food Yield and Portion Cost Calculator

Cooking & Kitchen · Shopping

Convert purchased food to prepared and cooked mass, or work backward from a required edible amount.

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Geometry

Box Packing Calculator

Shopping · Construction & DIY · Design & Drawing

Compare all six orientations for identical rectangular items in a rectangular container. Find the best uniform grid, counts along each axis and volume utilization.

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Home

Wallpaper Roll and Pattern Repeat Calculator

Home & Everyday · Construction & DIY · Shopping

Estimate full-height wallpaper drops and rolls with trim and straight pattern matching.

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Money

Split Bill and Expense Settlement Calculator

Money Management · Travel · Shopping

Split a shared expense by equal or weighted shares and calculate who pays whom. Keep rounded shares and transfers balanced exactly to your selected currency precision.

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Margin, Markup and Selling Price Calculator

Shopping · Money Management

Calculate gross margin, price markup and contribution after entered selling fees. Reverse a target contribution margin to find the required selling price.

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Physics

Battery Capacity and Runtime Calculator

Science & Lab · Shopping · IT & Communication

Convert nominal battery charge and energy using battery voltage. Estimate constant-load runtime from usable capacity and conversion efficiency.

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Shopping

Parcel Dimensional Weight Calculator

Shopping · Travel

Compare packed actual weight and volumetric weight using an entered divisor. Round each identical parcel to an entered weight increment and total the shipment weight.

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Unit Price Calculator

Shopping · Money Management

Compare product bundles by price per the same quantity. Mix compatible units, include multiple packs and view a ranked table and unit-price chart.

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