WrenchMath

WrenchMath brings practical shop calculations, reference tables, and phone tools into one organized toolbox. Use the free quick conversions for fractions, metric measurements, torque, pressure, temperature, volume, and length, plus Digital Level. An optional one-time WrenchMath Pro purchase unlocks the complete collection of 39 tools. No subscription, ads, tracking, or WrenchMath account. The toolbox includes: • Fastener tools for torque-wrench extensions, threads, bolt circles, tap drills, and bolt grades. • Engine and drivetrain calculations for horsepower, displacement, compression, tires, speed, and gearing. • Hydraulics tools for cylinder force, speed, cycle time, pump power, hose velocity, and hydraulic motors. • Electrical tools for Ohm's law, voltage drop, and battery runtime. • Shop and fabrication calculations for circles, right triangles, pulleys, and fill volume. • Fill Volume for mulch, soil, gravel, and similar materials: enter area dimensions and depth, then see bulk volume and an optional whole-bag estimate in US or metric units. • AR Tape, Digital Level, and a gyroscope-based Torque-Angle Assistant on compatible devices. Make the toolbox yours. Rearrange sections, collapse the groups you use less often, keep favorites, search for tools, and return to saved entries. Greasy-Finger Mode provides extra-large controls and bigger results. Calculator math works offline; purchases and purchase restoration require the App Store. WrenchMath is a calculation aid. Follow manufacturer specifications and safe work procedures. Verify measurements for critical work. Phone-based measuring tools are estimates and do not replace calibrated equipment. Fill estimates do not automatically add settling or waste allowances.