Calculator collection · 10 distinct tools
Measurement Calculators
Work with tape-measure dimensions, drawing scales, area and unit conversions.
Measurement pages connect field dimensions with unit references and project calculators without generating every possible unit pair as a thin page.
Open a real interactive tool instead of landing on a thin keyword page.
Formulas, units and assumptions stay visible beside the result.
Move between genuinely different calculations inside one collection.
Supplier, manufacturer, drawing and standards data remain authoritative where required.
Choose the calculation that matches the job
Each page owns a distinct input/output task. Reciprocal forms stay together when the underlying job is the same.
Calculator
Feet and Inches Calculator
Add, subtract, multiply, divide or convert feet and inches, including decimal and fractional inch inputs, with decimal feet and metric equivalents.
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Scale Calculator — Drawings, Maps and Models
Convert real measurements to scaled drawing or model sizes, convert scaled sizes back to real dimensions, or find the 1:N scale ratio.
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Square Footage Calculator
Calculate square footage for rectangles, circles and triangles, convert the area to square meters and estimate cost from a price per square foot.
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Pressure Converter — PSI, Bar, kPa, MPa, atm, Torr & mmHg
Convert pressure instantly between Pa, hPa, kPa, MPa, GPa, bar, mbar, psi, ksi, atm, Torr, mmHg, inHg and kgf/cm², with every equivalent, the direct factor, adjustable precision and gauge-vs-absolute guidance.
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Torque Unit Converter — N·m, lb·ft, lb·in, oz·in & kgf·m
Convert torque between N·m, kN·m, mN·m, lbf·ft, lbf·in, ozf·in, kgf·m, kgf·cm and gf·cm with every equivalent, adjustable precision and a direct conversion factor.
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Force Converter — Newtons, kN, lbf, kgf, Kip & Dyne
Convert force between N, mN, kN, MN, lbf, ozf, kip, kgf, gf, dyne, poundal and US ton-force, with all equivalents, adjustable precision and clear mass-versus-force guidance.
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Energy Unit Converter — J, kJ, MJ, kWh, Calories, BTU & eV
Convert energy between joules, kJ, MJ, GJ, Wh, kWh, MWh, calories, food Calories, BTU, electronvolts, ft·lbf and ergs, with all equivalents, scientific notation and clear energy-vs-power context.
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Power Unit Converter — W, kW, MW, HP, PS, BTU/h & Refrigeration Tons
Convert power between W, mW, kW, MW, GW, mechanical hp, metric PS, BTU/h, kcal/h, refrigeration tons and ft·lbf/s, with all equivalents and explicit power-vs-energy guidance.
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Angle Converter — Degrees, Radians, Gradians, Turns, Arcmin & Arcsec
Convert angles between radians, milliradians, degrees, gradians/gons, turns, arcminutes and arcseconds with all equivalents, exact circle relationships, swap and adjustable precision.
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Data Rate Converter — Mbps, MB/s, Gbps, GB/s, Mib/s & MiB/s
Convert data transfer rates between decimal bit/byte units and binary Kib/Mib/Gib units, including Mbps↔MB/s and Gbps↔GB/s, with all equivalents plus GB/hour and TB/day throughput context.
Open calculatorUnit conversion references
Start from the unit you have. Each reference includes the live converter, exact factors, common-value table and links to related units.
length
Inch Conversion Calculator & Table
Convert inches to feet, centimeters, millimeters, meters and yards. See exact factors, common values and the live length converter.
length
Foot Conversion Calculator & Table
Convert feet to inches, meters, centimeters, yards and millimeters with a live calculator, conversion factors and common values.
length
Millimeter Conversion Calculator & Table
Convert millimeters to inches, centimeters, meters and feet with exact factors, common values and a live length converter.
length
Centimeter Conversion Calculator & Table
Convert centimeters to inches, millimeters, meters and feet with exact factors, common values and a live converter.
length
Meter Conversion Calculator & Table
Convert meters to feet, inches, centimeters, millimeters and kilometers with a live converter and common-value table.
volume
US Gallon Conversion Calculator & Table
Convert US liquid gallons to liters, milliliters and cubic feet with a live volume converter and common-value table.
volume
Liter Conversion Calculator & Table
Convert liters to US liquid gallons, milliliters and cubic feet with a live converter, factors and common values.
weight
Kilogram Conversion Calculator & Table
Convert kilograms to pounds, grams and ounces with a live weight converter, exact factors and common-value table.
weight
Pound Conversion Calculator & Table
Convert pounds to kilograms, grams and ounces with a live weight converter, factors and common values.
speed
Miles per Hour Conversion Calculator & Table
Convert mph to km/h, m/s, ft/s and knots with a live speed converter, factors and common-value table.
speed
Kilometers per Hour Conversion Calculator & Table
Convert km/h to mph, m/s, ft/s and knots with a live speed converter, factors and common-value table.
Useful next calculations
Move to a different formula only when the next question actually changes.
Explore adjacent calculator collections
Cross-cluster links help you move from measurement to project quantity, electrical relationships, math or media planning without flattening everything into one giant list.
Construction & DIY Calculators →
Estimate area, concrete and tile quantities with visible assumptions and formulas.
Electrical & Engineering Calculators →
Solve foundational voltage, current, resistance and power relationships without hiding the formulas.
Statistics Calculators →
Paste datasets to calculate descriptive statistics, sample/population spread and weighted averages with the formulas, conventions and row-level working kept visible.
Fraction Calculators →
Work with fractions, decimals, mixed numbers and practical inch fractions with the simplifying steps kept visible.
Geometry Calculators →
Solve right triangles, general triangles, circles, rectangles, perimeter, volume and slope from explicit dimensions and formulas.
Screen, Image & Video Calculators →
Plan pixel density, physical screen dimensions, aspect ratios, video bitrate and file size before resizing, converting or compressing media.
Formula first, assumptions visible
MAXScanner keeps editable rates and dimensions next to the result, shows the working where it helps, and avoids turning reciprocal formulas into duplicate pages. For product, electrical or construction decisions, manufacturer data, drawings and applicable standards remain authoritative.