Engineering Tools

Rebar Spacing Calculator

Calculate number of bars from length and spacing.

Inputs

Values update results instantly.

Member Length (ft)

Center-to-Center Spacing (inch)

End Cover each side (inch)

Estimates only. Verify with a licensed engineer, architect, or municipality before construction or payment decisions.

यो अनुमान मात्र हो। निर्माण वा भुक्तानी अघि इञ्जिनियर, आर्किटेक्ट वा नगरपालिकासँग पुष्टि गर्नुहोस्।

Concrete Mix Ratio Calculator

Break down cement, sand and aggregate for a given volume and mix.

Rebar Weight Calculator

Same as steel weight — diameter, length and bars.

Water Tank Volume Calculator

Calculate rectangular water tank capacity in liters.

Septic Tank Size Calculator

Approximate septic tank volume from users and retention days.

Excavation Volume Calculator

Calculate excavation volume for pits and trenches.