ToolStaxx

Free calculators, converters and planning tools for everyday tasks.

Start with the number you know. ToolStaxx helps you work out the next one.

Open all tools Build a project sheet

1Find the right toolSearch by task or category. 2Work out the resultUse clear inputs and examples. 3Keep the useful bitsCopy, save, share or add to a sheet.

Smart Start

What are you trying to work out?

Describe the task and ToolStaxx will point you to a useful starting place.

Try a task

Browse all tools

Popular tools

Useful places to start

Money · Live

VAT Calculator

Add or remove VAT from an amount and see net, VAT and…

Food · Live

Unit Price Calculator

Compare two pack prices by cost per 100g, 100ml or unit.

Home · Live

Room Area Calculator

Measure floor area, extra rectangles and cut-outs…

Home · Live

Paint Calculator

Calculate paint from a known area, imported area or by…

Tech · Live

Download Time Calculator

Estimate download time from file size and connection…

Food · Live

Recipe Scaler

Scale ingredient quantities up or down from original…

Electrical · Live

Electricity Cost Calculator

Estimate running cost from watts, hours and unit…

Work · Live

Reading Time Calculator

Estimate reading time from word count and words per…

Work · Live

Time Duration Calculator

Add hours, minutes and seconds into a clean total…

Converter · Live

Length Converter

Convert between metres, centimetres, millimetres…

Tool Trails

Follow the task, not the menu

Paint a room

Measure the space, estimate paint, then keep the result on a printable sheet.

Room Area→ Paint→ Project Sheet

Compare spending

Compare prices, check discounts and understand what something costs over time.

Unit Price→ Discount→ Monthly Cost

Move files

Turn file sizes and speeds into a realistic transfer or backup time.

File Size→ Transfer Speed→ Backup Time

Plan a recipe

Scale ingredients, check oven settings and estimate the cost per portion.

Recipe Scaler→ Oven Converter→ Portion Cost

3D print estimate

Estimate material, time and notes before sharing or quoting a print.

Filament Cost→ Time Cost→ Project Sheet

Study note

Estimate how long something takes to read, set a simple deadline and keep the note together.

Reading Time→ Deadline→ Project Sheet

Start with a Project Sheet template

Room Project

Room Area, Paint, Flooring Start

Garden Plan

Soil, Mulch, Turf Start

Shopping Check

Unit Price, Discount, Split Bill Start

Recipe Plan

Recipe Scaler, Oven, Portion Cost Start

Tech Note

Download Time, Backup, RAID Start

3D Print Cost

Filament, Time Cost, Scale Start

Power Check

Electricity Cost, Battery, Ohm's Law Start

Study / Work Note

Reading Time, Deadline, Rates Start

Browse categories

🏠

Home & Garden

Rooms, materials and outdoor quantities.

🍳

Food & Shopping

Recipes, prices, portions and bills.

💾

Tech & Files

JSON, networks, storage and transfers.

🧰

Makers

3D print material, time and cost.

⚡

Power

Running cost, batteries and electrical checks.

Money & Bills

VAT, discounts and monthly costs.

📚

Work & Study

Time, deadlines, rates and converters.

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