Civil Engineering Calculators

Calculate bending moments, shear forces, and stresses in beams.

Determine the deflection of beams and slabs under various loads.

Assess the buckling capacity of steel or timber columns under axial loads.

Design beams per ACI/AASHTO codes for moment, shear, and reinforcement.

Generate interaction diagrams and determine required reinforcement.

Size steel beams according to AISC specifications for bending, shear, and deflection.

Calculate allowable axial loads and design steel columns.

Determine slab thickness and reinforcement based on load and span.

Check punching shear capacity around columns.

Design steel-concrete composite beams for buildings and bridges.

Evaluate load-bearing capacity and reinforcement needs of masonry walls.

Size timber elements according to NDS standards.

Determine tendon profiles, jacking forces, and ultimate capacities.

Compute design strength of steel connections.

Determine lateral load capacity and design shear walls or braced frames.

Size plate girders for large spans and heavy loads.

Determine thickness, reinforcement, and girder spacing for bridge decks.

Analyze cantilever or gravity walls for soil pressures and reinforcement.

Check global and local stability criteria of members and frames.

Estimate natural frequencies of floors or beams under dynamic loads.

Calculate flow in open channels using Manning's equation.

Size culverts based on design flows and headwater constraints.

Estimate peak runoff rates using the Rational Method.

Compute head loss and flow in pressurized pipe networks.

Determine pump head and efficiency for water supply systems.

Estimate storage capacity and evaporation losses in reservoirs.

Compute flow rates over weirs or through orifices.

Generate rainfall intensity-duration-frequency values for storm design.

Size detention or retention ponds for controlling peak flows.

Estimate subsurface flow rates and gradients.

Generate a simplified hydrograph based on rainfall and watershed characteristics.

Assess sediment transport potential in open channels.

Evaluate flood risk based on elevation and flood statistics.

Calculate pressure surges in pipelines due to sudden flow changes.

Determine pavement thickness based on traffic and soil conditions.

Determine ultimate and allowable bearing capacities of soils.

Estimate hydraulic conductivity of soils based on grain size or field tests.

Design geotextiles and geogrids for soil reinforcement and filtration.

Analyze stress and strain in flexible pavement layers.

Design concrete pavements for highways and airports.

Determine roadway capacity and level of service.

Estimate entry capacity and delay for roundabouts.

Calculate stopping and passing sight distances for road design.

Design horizontal and vertical curves for road alignments.

Determine superelevation rates for horizontal curves.

Calculate water spread width on roadways during rainfall events.

Determine optimal asphalt content and aggregate gradation.

Evaluate long-term costs of pavement alternatives.

Classify soil types based on particle size distribution.

Calculate site-specific seismic response parameters.

Evaluate ground improvement techniques and their effectiveness.

Design asphalt overlays for pavement rehabilitation.

Estimate quantities of concrete, steel, and masonry for construction projects.

Determine proportions of cement, water, and aggregates for concrete mixes.

Calculate cut and fill volumes for site grading and road construction.

Estimate formwork requirements and costs for concrete structures.

Determine the axial capacity of driven or bored piles.

Design spread footings and mat foundations for buildings.

Assess the stability of natural slopes and engineered embankments.

Estimate settlement and time rate of consolidation for clay soils.

Generate bar bending schedules for reinforcement detailing.

Estimate production rates and timeline for earthmoving.

Check crane load charts and stability conditions.

Identify critical paths and durations in construction schedules.

Approximate project costs based on quantities, material prices, and labor rates.

Determine cycle times for construction equipment operations.

Estimate volumes and disposal costs for construction waste.

Predict concrete strength gain over time.

Size silt fences, check dams, and sediment basins.

Determine sizing of best management practices for water quality.

Estimate pollutant concentrations downwind of sources.

Evaluate height and length of noise barriers for traffic noise mitigation.

Estimate sewage flows and loads for treatment plant design.

Determine drainfield size and layout for septic systems.

Use the Universal Soil Loss Equation to predict erosion rates.

Estimate stormwater retention for green infrastructure.

Compute greenhouse gas emissions from construction operations.

Evaluate environmental impacts of materials and processes.

Determine pipe diameters to maintain pressure and flow.

Size sewer lines based on population and flow estimates.

Determine required flow rates for fire protection systems.

Evaluate trench dimensions and protective systems.

Compute material expansion due to temperature changes.

Convert units and estimate mechanical properties of materials.

Estimate improvements in soil bearing capacity.

Convert engineering units quickly.

Determine riprap sizes for erosion protection on slopes.

Estimate seismic base shear and distribution.

Assess the required retrofitting for deficient structural elements.

Determine fiber-reinforced polymer wrap or plate requirements.

Size base plates and anchor bolts for columns.

Estimate scour around bridge piers and abutments.

Determine dike or levee heights.

Size subsurface drainage systems.

Size drainage layer and outlets for retaining walls.

Plan site elevations and stormwater drainage patterns.

Estimate stresses using simplified finite element assumptions.

Compute safety factors or reliability indices for designs.

Evaluate stresses in structures due to temperature gradients.

Determine wind pressures on structures per ASCE wind maps.

Compute snow loads on roofs.

Assess structural response to impact loads.

Predict fatigue life under cyclic loading.

Determine corrosion allowance for steel and concrete.

Estimate shrinkage and creep in concrete.

Compute thermal properties of building envelopes.

Estimate sound transmission loss in building materials.

Check required fire protection measures.

Estimate energy usage in infrastructure.

Compare long-term costs of engineering solutions.

Evaluate basic treatment plant sizing and chemical dosing.

Estimate infiltration basin drainage time.

Dimension rain gardens for runoff management.

Assess CO2 emissions from material production.

Optimize labor and equipment distribution.

Identify critical activities and available float.

Estimate project cash inflows and outflows.

Assess financial viability of infrastructure projects.

Estimate risk and probability of failure.

Weigh environmental mitigation costs.