Unit-aware calculators and converters for physics, chemistry and engineering problems. From Ohm's law to pressure and energy, these tools keep the formulas visible so you can check the working.

No tools in this category are live yet. The first tools in this category arrive in Phase 1. The full list below shows every tool planned for this category — check back soon.

Tools planned for this category

• AC Tonnage (BTU) Calculator

  AC Tonnage (BTU) Calculator with formula shown.

• Acceleration Calculator

  Acceleration Calculator with formula shown.

• Battery Life Calculator

  Battery Life Calculator with formula shown.

• Brick Calculator

  Brick Calculator with formula shown.

• Capacitor Code Calculator

  Capacitor Code Calculator with formula shown.

• Chemical Equation Balancer

  Chemical Equation Balancer with formula shown.

• Concrete Volume Calculator

  Concrete Volume Calculator with formula shown.

• Density Calculator

  Density Calculator with formula shown.

• Dilution Calculator (C1V1)

  Dilution Calculator (C1V1) with formula shown.

• Electricity Cost Calculator

  Electricity Cost Calculator with formula shown.

• Flooring Calculator

  Flooring Calculator with formula shown.

• Force (F=ma) Calculator

  Force (F=ma) Calculator with formula shown.

• Free Fall Calculator

  Free Fall Calculator with formula shown.

• Fuel Cost Calculator

  Fuel Cost Calculator with formula shown.

• Gear Ratio Calculator

  Gear Ratio Calculator with formula shown.

• Generator Load Calculator

  Generator Load Calculator with formula shown.

• Ideal Gas Law Calculator

  Ideal Gas Law Calculator with formula shown.

• IPS / UPS Backup Time Calculator

  IPS / UPS Backup Time Calculator with formula shown.

• Kinetic Energy Calculator

  Kinetic Energy Calculator with formula shown.

• LED Resistor Calculator

  LED Resistor Calculator with formula shown.

• Mileage Calculator

  Mileage Calculator with formula shown.

• Molar Mass Calculator

  Molar Mass Calculator with formula shown.

• Molarity Calculator

  Molarity Calculator with formula shown.

• Ohm's Law Calculator

  Ohm's Law Calculator with formula shown.

• Paint Calculator

  Paint Calculator with formula shown.

• Periodic Table (Interactive)

  Periodic Table (Interactive) with formula shown.

• pH Calculator

  pH Calculator with formula shown.

• Potential Energy Calculator

  Potential Energy Calculator with formula shown.

• Power (P=VI) Calculator

  Power (P=VI) Calculator with formula shown.

• Pressure Calculator

  Pressure Calculator with formula shown.

• Projectile Motion Calculator

  Projectile Motion Calculator with formula shown.

• Rebar Weight Calculator

  Rebar Weight Calculator with formula shown.

• Resistor Color Code Calculator

  Resistor Color Code Calculator with formula shown.

• Roof Pitch Calculator

  Roof Pitch Calculator with formula shown.

• Series & Parallel Resistor Calculator

  Series & Parallel Resistor Calculator with formula shown.

• Solar Panel Size Calculator

  Solar Panel Size Calculator with formula shown.

• Speed Distance Time Calculator

  Speed Distance Time Calculator with formula shown.

• Stair Calculator

  Stair Calculator with formula shown.

• Steel Weight Calculator

  Steel Weight Calculator with formula shown.

• Tile Calculator

  Tile Calculator with formula shown.

• Tire Size Calculator

  Tire Size Calculator with formula shown.

• Voltage Divider Calculator

  Voltage Divider Calculator with formula shown.

• Water Tank Capacity Calculator

  Water Tank Capacity Calculator with formula shown.

• Wavelength Frequency Calculator

  Wavelength Frequency Calculator with formula shown.

• Wire Gauge Calculator

  Wire Gauge Calculator with formula shown.

• Work & Power Calculator

  Work & Power Calculator with formula shown.

About this category

When will these tools be ready to use?

Tools are published in batches, starting with the 40 highest-value tools in Phase 1. Each tool goes live only when it is fully working, tested on mobile, and has its own written guide.

Will my files be uploaded when I use a tool?

No. Every Toolsvine tool runs 100% in your browser. Files, text and images you use in a tool never leave your device.