ToolHuts

Practical Calculators, Visual Layouts and Printable Templates

Calculate dimensions, compare layouts and generate full-size templates. The tools are free to use, require no account, and keep calculator inputs in your browser.

Popular Tools

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Personal measurement tools

Compare body measurements with named clothing charts and explicit sizing assumptions.

10 tools

Finance calculators

Explore savings, loan payments, budgets and conversions with explicit entered rates and assumptions.

8 tools

Electrical calculators

Calculate electrical power, resistance, field and potential, and review DC voltage drop alongside supplied installation ampacity.

4 tools

Science calculators

Explore motion, speed, distance and trajectories using explicit units and assumptions.

34 tools

Date and time tools

Calculate date differences, shift durations and ages, convert time units and compare time zones.

11 tools

Math utilities

Calculate fractions, percentages, powers, ratios, probability and statistics, convert Roman numerals, and use random, dice and grading utilities.

19 tools

Unit converters

Convert length, area, volume, mass, speed, angles, torque and energy with explicit unit definitions and examples.

9 tools

Geometry

Areas, volumes, triangle dimensions and slopes

22 tools

Leathercraft

Hole spacing, stitch paths, gussets and full-size templates

7 tools

Fabric Crafts

Quilting yardage, cutting and sewing patterns

4 tools

Model Railroad

Grades, helixes, easements and printable track templates

7 tools

Home Theater & AV

Screens, projectors, speakers and rooms

37 tools

Automotive

Wheels, tires, gearing and clearance

10 tools

Print & Scale

Full-size printing, DPI and paper scaling

7 tools

Workshop

Drilling, notching and marking templates

14 tools

Fabrication

Bend calculations and flat patterns

22 tools

Woodworking

Cut lists, joinery and board measure

19 tools

Construction

Stairs, roofs, layouts and materials

34 tools

Packaging

Carton, label and roll calculations

4 tools

Logistics

CBM, pallets, containers and freight

6 tools

Contractor Business

Loaded labor rates, crew cost and bid pricing

7 tools

Layout & Planning

Spacing, pictures, tables and wall layouts

4 tools

Off-Grid & DC Power

Solar, battery and 12V/24V/48V wiring

2 tools

Fit & Clearance

Openings, appliance clearance and moving routes

3 tools

What you get

Free to use
No account
Inputs stay local
Formulas shown
Scaled diagrams
Calibration checks

ToolHuts combines calculations with diagrams, layouts and printable templates. Compare wheel position, lay out evenly spaced parts, plan cuts, estimate materials, or print a drilling template at full size.

Calculator inputs and uploaded working files are processed in your browser. Each tool shows its method and identifies the assumptions you still need to verify, such as vehicle clearance, local building rules, carrier charges or material tolerances.