TEBAMI

TEBAMI / CALCULATOR LIBRARY

60 practical measurement calculators.

Explore the tools in the Tebami Android app: 25 Free calculators and 35 more with a one-time Pro purchase. These are app tools, not browser calculators.

Get Tebami on Google PlayCompare Free and Pro

Conversions

Free

Inches ↔ Millimetres

Convert inch dimensions to millimetres or back for drawings and hardware.

Free

Fraction ↔ Millimetres

Convert fractional inches into millimetres when checking stock or drill sizes.

Free

Length Converter

Convert common length units when plans and measuring tools use different systems.

Free

Area Converter

Convert square units before comparing floor coverage or supplier quantities.

Free

Volume Converter

Convert cubic and liquid units; distinguish US from Imperial measures.

Free

Weight Converter

Convert mass units such as kilograms and pounds for stock quantities.

Free

Temperature Converter

Convert Celsius, Fahrenheit and Kelvin readings.

Free

Force converter

Convert newtons and pound-force; distinguish force from mass.

Measurement

Free

Percentage Increase/Decrease

Apply a percentage increase or reduction to a base amount.

Free

Measurement Difference

Find the difference between two lengths when checking a fit.

Pro

Multiply/Divide Measurements

Scale a length by a number for repeated pieces or divisions.

Pro

Midpoint / Half Measurement

Halve a measurement to locate the centre of a shelf or panel.

Pro

Scale Measurement

Translate a measured length between 1:N drawing scales.

Pro

Ratio Calculator

Reduce two nonnegative quantities to a ratio for comparing proportions.

Pro

Percentage Difference

Compare two nonnegative values using their average as the reference.

Pro

Running Total of Measurements

Add or subtract a list of measured lengths, one per line.

Area & Geometry

Free

Radius / Diameter

Find a radius from a diameter or double a radius for circular parts.

Free

Rectangle Area

Multiply length by width for rectangular floor or panel coverage.

Free

Circle Area

Find circular area from a diameter for round projects.

Free

Triangle Area

Use a base and perpendicular height to find triangular coverage.

Pro

Circle Circumference / Diameter

Convert between the distance around a circle and its diameter.

Pro

Arc Length

Find the length of a circular arc from its radius and angle.

Pro

Trapezoid Area

Calculate area between parallel bases using perpendicular height.

Pro

L-Shaped / Irregular Area

Add two non-overlapping rectangles to estimate an L-shaped area.

Pro

Room Area

Subtract excluded area from a rectangular floor footprint.

Pro

Wall Area

Subtract door and window openings from a rectangular wall.

Pro

Box Surface Area

Calculate the total outside area of all six faces of a box.

Pro

Cylinder Surface Area

Find curved surface area plus both, one or no circular end faces.

Volume

Pro

Box Volume

Multiply three dimensions for a rectangular space or container.

Pro

Cylinder Volume

Use diameter and height to calculate cylindrical volume.

Pro

Tank Volume

Estimate capacity and fill volume of rectangular or upright cylindrical tanks using internal dimensions.

Pro

Concrete Volume

Estimate slab, wall, footing or column volume with an allowance; no structural assessment.

Pro

Soil / Mulch Volume

Estimate rectangular coverage area times depth, with a chosen allowance.

Pro

Gravel Volume

Estimate volume from length, width and depth; compaction is not assumed.

Materials

Free

Material Waste Allowance

Add a chosen waste percentage to a base quantity; round whole pieces up.

Pro

Board Feet

Calculate lumber volume in board feet from dimensions and quantity.

Pro

Linear Feet Required

Divide required area by effective coverage width to estimate continuous length.

Pro

Sheet Material Quantity

Estimate whole sheets from required area, sheet dimensions and waste.

Pro

Tile Quantity

Estimate whole tiles for an area; actual cutting and grout layout are not modelled.

Pro

Drywall Sheet Quantity

Estimate whole drywall sheets from net area and a waste allowance.

Layout & Construction

Free

Equal Spacing

Lay out objects or clear spaces across a span with the selected end-gap arrangement.

Free

Diagonal / Pythagorean

Find a right-triangle diagonal or missing side when checking square layouts.

Free

Rise / Run

Relate rise, run and grade for sloping measurements.

Pro

Slope / Grade Percentage

Express rise divided by run as a percentage for layout work.

Pro

Angle from Rise & Run

Find the slope angle from vertical rise and horizontal run.

Pro

Roof Pitch

Express roof slope as rise per 12 units of run.

Pro

Rafter Length

Find the geometric sloping length from run and rise, pitch or angle.

Pro

Stair Rise & Run

Explore stair geometry using rise and run inputs; check local requirements separately.

Pro

Square Layout / 3-4-5

Scale the 3-4-5 right triangle to set out a square corner.

Pro

Stud Quantity

Estimate end and intermediate studs using maximum spacing; openings and extra framing are excluded.

Pro

Fastener Spacing / Quantity

Estimate evenly spaced fasteners between end margins without exceeding a maximum spacing.

Pro

Bolt Circle / Hole Layout

Calculate hole angles and centre coordinates around a bolt circle.

Fabrication

Free

Tap Drill Size

Look up common cutting-tap drill sizes for Metric, UNC and UNF threads; forming taps differ.

Business

Free

Margin & markup

Relate cost, selling price, margin and markup when preparing an estimate.

Use the accuracy guide to understand units, rounding and estimates.

Get Tebami on Google PlayCompare Free and Pro