Estimate modular, standard, and king-size facing bricks, mortar bags, and sand requirements for single and double-wythe walls.
Asphalt Calculator – Driveway & Parking Lot Tonnage Estimator
Calculate hot mix asphalt tonnage, compacted depth, surface area coverage, and tack coat for driveways and parking lots.
Basic Calculator — Standard 4-Function Desktop Calculator
Free standard basic desktop calculator online. Add, subtract, multiply, divide, square root, percent, and memory functions (M+, M-, MR, MC) with tape history.
Significant Figures Calculator — Sig Fig Counter & Rounder
Calculate significant figures, identify sig fig rules, round numbers to N significant figures, and perform sig fig addition, subtraction, and multiplication.
Scientific Notation Calculator — Convert & Calculate Scientific Numbers
Convert numbers to scientific notation (a × 10^b), engineering notation, and E-notation. Perform addition, subtraction, multiplication, and division of scientific numbers.
Scientific Calculator — Free Full-Featured Online Scientific Math
Perform advanced scientific calculations, trigonometry (sin, cos, tan), logarithms, powers, factorials, and memory registers free online with Scientific Calculator.
Rounding Calculator — Round Half Up, Banker’s Rounding & Sig Figs
Round numbers online to nearest integer, tenths, hundredths, thousandths, or significant figures using Round Half Up, Banker
Root Calculator & Radical Simplifier — Square, Cube & Nth Roots
Calculate square roots, cube roots, and arbitrary nth roots. Free online radical simplifier simplifying square roots into exact radical form with step-by-step math.
Ratio & Proportion Calculator — Solve, Simplify & Scale
Solve proportions A:B = C:D for unknown X, simplify complex ratios to lowest terms, and scale aspect ratios. Free online ratio calculator with step-by-step math.
Percentage Increase Calculator — Percent Change & Growth Solver
Calculate percentage increase, percent decrease, and percentage difference online. Free percent change calculator with step-by-step formulas and retail markups.