Construction Tools – Small Tools. Big Help.

Welcome to SmallToolsOnline.com — your go-to toolkit for construction-related calculations and planning. Our collection of smart browser-based construction tools helps you calculate, measure, convert, and estimate materials instantly — all without installing any software or sending your data anywhere.

From simple area and volume calculators and unit converters to advanced material estimators, cost calculators, and blueprint helpers, every tool runs directly in your browser using fast JavaScript processing.

Whether you're a builder estimating materials, an architect planning layouts, or a DIY enthusiast working on home projects — Small Tools Online helps you do it faster, smarter, and safer.

All Construction Tools

m³
Concrete Volume Calculator
Estimate and calculate concrete volume required for slab or form.
yd³
Cubic Yardage Calculator
Compute how many cubic yards for given dimensions.
ft²
Square Footage Calculator
Calculate surface area in square feet for floors, walls, etc.
BF
Board Foot Calculator
Estimate board feet for lumber based on dimensions.
Rafter Length Calculator
Calculate length of roof rafter given rise and run.
Mix
Concrete Mix Calculator
Determine correct material proportions for a concrete mix.
Grv
Gravel Volume Calculator
Calculate volume of gravel for fill or aggregate layers.
Brk
Brick & Mortar Calculator
Estimate number of bricks and mortar needed for a wall.
T W
Tile Area & Waste Calculator
Calculate tile area required plus waste percentage.
FPC
Fence Post Concrete Calculator
Estimate concrete and fill for fence posts and footing.
RW
Retaining Wall Material Calculator
Estimate blocks, gravity wall masonry and backfill for retaining wall.
Roof Pitch & Rafter Calculator
Calculate roof pitch, rafter length, rise, run and angle.
PAINT
Paint Area & Coverage Calculator
Calculate surface area to be painted plus paint coverage required.
PAV
Paver Base & Material Calculator
Estimate base material and paver count for patios/walkways.
REB
Rebar Weight & Count Calculator
Compute number and weight of rebar required for slab/wall.
EXC
Excavation Volume Calculator
Estimate volume of soil to excavate for foundations or trenches.
T&G
Tile & Grout Coverage Calculator
Calculate tile area plus grout lines coverage needed.
WALL
Wall Area & Material Calculator
Calculate wall surface area and material quantity required.
Paint Trim & Flashing Length Calculator
Estimate linear length of trim/flashing needing paint or protection.
$ / unit
Cost per Unit Material Calculator
Calculate cost per unit of material from total cost and quantity.