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Free engineering calculators, unit converters, CFD tools, FEA helpers, Electrical calculators and converters, CAD documentation helpers, Manufacturing calculators, civil quantity and site-planning calculators, Ansys and OpenFOAM setup helpers, data science CSV utilities, MATLAB and Python code helpers, statistics calculators, numerical-method tools, and research workflow tools built around formulas, assumptions, units, and practical interpretation.
Engineering unit converters and calculation helpers with formulas, assumptions, and interpretation.
CFD calculators and setup helpers for flow regimes, wall treatment, pressure loss, and solver preparation.
Finite element analysis and solid-mechanics helpers for stresses, shafts, beams, columns, joints, fatigue, bearings, and materials.
Thermal engineering calculators for heat-transfer rate, conduction, convection, radiation, heat exchangers, resistance networks, insulation, and fins.
Browser-local CAD helpers and mechanical-design calculators for gear geometry, belt and chain drives, pulley ratios, shaft keys, GD&T, holes, threads, tolerances, sheet metal, drawings, BOMs, and manufacturing readiness.
Manufacturing calculators for CNC feeds and speeds, drilling, turning, milling, MRR, machining time, tap drills, welding heat input, sheet weight, and cutting force.
Browser-local code-template, syntax, plotting, CSV, matrix, vectorization, shape, error, and documentation helpers for MATLAB and Python workflows.
Browser-side CSV utilities for profiling, cleaning, missing values, duplicates, outliers, normalization, encoding, splitting, correlation, and JSON export.
Browser-side statistical calculators for descriptive summaries, inference, regression, reliability, and research checks.
Browser-local research workflow utilities for test selection, Likert analysis, review matrices, SLR searches, PRISMA counts, APA wording, data-cleaning checks, thesis planning, codebooks, and journal readiness.
Browser-side numerical-method calculators for roots, matrices, interpolation, integration, differentiation, and ODEs.
Civil engineering calculators for concrete, rebar, brickwork, plaster, material quantities, runoff, soil bearing, wall pressure, foundation pressure, loads, stair geometry, and road slopes.
Electrical calculators and converters for circuit values, backup time, kVA/kW, three-phase power, fault-current estimates, component codes, conductors, transformers, motors, and electrical units.
Browser-local Ansys Mechanical, Fluent, APDL, setup, residual, mesh, and report helpers.
Browser-local OpenFOAM dictionary generators, setup helpers, residual-log checks, and case-folder readiness tools.
Browser-local CalculiX input-deck, material-card, boundary, load-step, element, result-file, formatter, CSV material, and report-template helpers.
Browser-based script generators and template helpers for open CAD workflows, including FreeCAD Python, CadQuery, OpenSCAD, brackets, flanges, plates, shafts, gear blanks, pipe connectors, and simple enclosures.
Convert Pa, hPa, kPa, MPa, GPa, bar, mbar, atm, Torr, mmHg, cmHg, inHg, psi, ksi, psf, N/mm^2, kgf/cm^2, kgf/m^2, and conventional water-column units with formulas and steps.
Convert Celsius, Kelvin, Fahrenheit, and Rankine values in separate absolute-temperature and temperature-difference modes.
Convert N, mN, kN, MN, dyn, gf, kgf, lbf, kip, and ozf with signed-force support.
Convert stress units such as MPa, N/mm^2, psi, ksi, kgf/cm^2, and kgf/mm^2 with compression/tension sign support.
Convert volumetric flow rate units and clearly distinguish US GPM from Imperial GPM.
Compute Reynolds number for internal hydraulic-diameter workflows or external/general characteristic lengths.
Compute segment pressure drop with direct or calculated Darcy friction factor and CFD geometry inputs.
Compute y plus using friction velocity, wall shear, Darcy friction factor, or skin-friction coefficient modes.
Compute distortion-energy equivalent stress from component or principal stress inputs.
Resolve center, radius, principal stresses, transformed stress, and maximum in-plane shear.
Compare stress demand with yield strength or allowable stress using selected criteria.
Apply the flexure formula to common beam section shapes and custom section modulus values.
Estimate required solid or hollow circular-shaft diameter using torque, bending moment, service factors, and equivalent-stress criteria.
Estimate maximum deflection, slope, flexural rigidity, and section properties for common Euler-Bernoulli beam cases.
Calculate Basquin life, two-point S-N curve coefficients, Goodman/Gerber/Soderberg corrections, and Miner damage for preliminary fatigue review.
Calculate L10 life for ball or roller bearings, life hours from rpm, equivalent dynamic load, and static load safety factor.
Convert elastic, density, strength, and thermal properties with isotropic relationship checks and ANSYS APDL or CalculiX text output.
Estimate heat-transfer rate or total heat using energy-time, batch sensible heat, steady-flow sensible heat, and user-entered latent heat formulas.
Compute parallel-flow or counterflow LMTD, handle equal terminal differences, and apply a user-entered correction factor.
Estimate effectiveness, heat rate, qmax, capacity-rate ratio, and outlet temperatures using basic epsilon-NTU relationships.
Build a simple series or parallel thermal-resistance network and compute equivalent resistance and heat-transfer rate.
Compare source, target, expected, and detected dimensions to flag CAD unit-scale mismatch risk.
Calculate worst-case and RSS tolerance stack-up with target pass/fail guidance.
Calculate bend allowance, bend deduction, setback, and flat length guidance.
Generate a manufacturing-readiness checklist for CAD models, drawings, BOMs, tolerances, and supplier handoff.
Calculate gear dimensions from module or diametral pitch.
Calculate spur gear pair geometry and ratio.
Calculate shaft key stress and required length.
Explain GD&T symbols and drawing-note review points.
Calculate spindle speed, chip load, and feed rate for preliminary CNC setup review.
Calculate MRR from cut geometry, feed, speed, or volume over time.
Estimate cutting time, total cutting time, and adjusted machining time.
Calculate arc heat input from voltage, current, travel speed, and process efficiency.
Convert common MATLAB snippets into Python-style starter code without executing the input.
Convert common Python snippets into MATLAB-style starter code without executing the input.
Generate MATLAB or Python plotting boilerplate for common chart types without running the code.
Generate matrix operation starter code for MATLAB or NumPy without executing matrices.
Inspect CSV columns, inferred data types, missing values, duplicate rows, and descriptive summaries without uploading the file.
Apply explicit CSV cleaning options and download a cleaned CSV without uploading the file.
Summarize count, mean, median, quartiles, variance, standard deviation, skewness, kurtosis, and coefficient of variation.
Plan sample sizes for proportions, means, two means, and two proportions with upward rounding.
Run one-sample, paired, pooled, or Welch t-tests with p-values and effect-size estimates.
Calculate slope, intercept, R squared, residual error, and slope significance.
Map outcome type, groups, pairing, and research objective to candidate statistical tests with assumptions and related calculators.
Analyze numeric Likert responses with category counts, agreement share, central tendency, visual output, and export files.
Combine research concepts and synonyms into Boolean search strings with PubMed-oriented variants and documentation notes.
Review scope, reporting guideline, ethics, author contributions, figures, references, data availability, and submission files.
Bracketed root-finding with guaranteed interval reduction when f(a) and f(b) have opposite signs.
Open root-finding with a starting guess, derivative, residual, and iteration table.
Derivative-free open root-finding with two starting guesses and visible convergence history.
Fixed-point iteration with update-size and residual monitoring.
Calculate concrete volume for slabs, beams, columns, footings, cylindrical columns, piles, and simple custom member quantities.
Estimate rational-method peak runoff from catchment area, rainfall intensity, runoff coefficient, and a documented safety factor.
Estimate allowable bearing capacity from cohesion, unit weight, footing embedment, surcharge, bearing factors, footing width, and factor of safety.
Estimate average, maximum, and minimum footing bearing pressure from footing area, axial load, moment, eccentricity, and load factor.
Browser-local solve voltage, current, resistance, or DC power from compatible Ohm's law inputs.
Browser-local calculate real, apparent, and reactive power for DC, single-phase AC, or three-phase AC inputs.
Browser-local estimate conductor cross-sectional area from current density and voltage-drop limits.
Browser-local calculate conductor voltage drop, percent drop, load voltage, and I squared R loss.
Browser-local estimate backup runtime or required ampere-hour capacity from battery voltage, capacity, load, depth of discharge, and efficiency.
Browser-local calculate balanced three-phase real power, apparent power, reactive power, or line current.
Create editable controlDict text for OpenFOAM run control, time stepping, write intervals, and optional maxCo settings.
Create editable blockMeshDict text for simple block, patch, cell-count, and grading workflows.
Estimate Co, deltaT, or required cell size for transient OpenFOAM planning with explicit formulas and warnings.
Parse residual logs, summarize detected fields, and export residual-analysis summaries without uploading logs.
Choose common Mechanical support and load setup patterns with overconstraint, rigid-body-motion, remote-load, and symmetry warnings.
Create a structured material-property card with validation warnings and optional Mechanical APDL MP command starter text.
Estimate first-layer height, y-plus, geometric layer growth, and wall-treatment compatibility warnings locally.
Parse pasted or locally selected residual tables without uploading logs or claiming convergence proof.
Generate a browser-local CalculiX `.inp` input-deck skeleton with heading, mesh placeholders, material notes, boundary/load placeholders, step controls, and output requests.
Generate CalculiX material keyword blocks for elastic, density, plastic, expansion, conductivity, and specific-heat properties from typed values.
Select a cautious starter CalculiX element family for solid, shell, beam, plane, axisymmetric, or thermal setup planning.
Format pasted CalculiX input-deck text by cleaning duplicate blank lines and normalizing keyword capitalization as escaped plain text.
Generate a browser-local FreeCAD Python script template for simple plates, boxes, cylinders, bracket notes, flange notes, and shaft notes without running FreeCAD.
Generate a browser-local CadQuery script template for simple parametric mechanical parts using editable dimensions and clear modeling steps.
Generate editable FreeCAD Python, CadQuery, or OpenSCAD text for a simple L-bracket or angle-bracket concept with base, vertical leg, holes, and optional fillet notes.
Generate editable CAD script text for a simple rectangular enclosure with wall thickness, optional lid, screw boss notes, rounded-corner notes, and vent-slot placeholders.
Published calculators run in the browser, CSV data tools process selected files locally, and MATLAB/Python helpers treat code as plain text without execution, storage, or third-party code-analysis APIs. Manufacturing calculators do not upload CAD files, drawings, CNC code, or manufacturing data. CAD helpers do not upload CAD files, parse proprietary geometry, or run CAD kernels. Electrical tools do not upload circuit values, conductor assumptions, component markings, battery values, fault-estimate values, converter values, motor speeds, transformer values, or power-factor inputs. Ansys and OpenFOAM helpers do not execute solvers or upload setup text, snippets, logs, dictionaries, or case notes. Civil Engineering calculators do not upload drawings, BOQs, soil reports, project documents, or construction data.
Tools are structured around validated units, formulas, assumptions, visual results, limitations, and engineering interpretation instead of isolated numeric answers.
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