Professional Engineering Unit Converter & Physical Dimensions Solver
The Telekit Engineering Unit Converter is a high-precision, multi-domain technical measurement engine designed for mechanical engineers, civil and structural designers, electrical engineers, chemical process operators, and physics researchers. Convert seamlessly between SI metric, imperial (US customary), British gravitational, and CGS laboratory systems across 14 comprehensive physical domains with zero latency, exact fractional factors, and 100% offline browser execution.
Need to compute structural cross-sections and surface areas? Explore our Area Calculator. Working on engineering tolerances or efficiency percentages? Use the Percentage Calculator for instant mathematical ratio analysis.
📋 How to Convert Physical Engineering Units Step-by-Step
Select Engineering Domain
Choose from 14 physical domains: Pressure, Force, Power, Energy, Torque, Viscosities, Density, Flow Rates, Thermal properties, Velocity, or Acceleration.
Enter Value & Units
Input your numerical value, pick source and target units, or click any starter scenario preset (such as Hydraulic Line, Chiller Load, or Steel Density).
Adjust Precision & Notation
Customize output precision from 0 to 12 decimal places and toggle between Standard Decimal, Scientific ($1.013 \times 10^5$), or Engineering SI notation ($101.325 \times 10^3$).
Review Matrix & Export
Inspect the live full conversion matrix comparing all units simultaneously, copy values in 1-click, or export as CSV spreadsheet, JSON report, or Markdown.
📐 Supported Engineering Domains & SI Base Dimension Specifications
| Physical Domain | SI Base Unit | Fundamental SI Dimensions | Key Supported Units |
|---|---|---|---|
| Pressure & Stress | Pascal (Pa) | kg·m⁻¹·s⁻² | Pa, kPa, MPa, GPa, bar, mbar, psi, ksi, psf, atm, Torr, inHg, mmH₂O |
| Force & Thrust | Newton (N) | kg·m·s⁻² | N, kN, MN, lbf, kgf, kip, dyn, pdl, tonf (US), tf (Metric) |
| Power & Heat Flow | Watt (W) | kg·m²·s⁻³ | W, kW, MW, GW, hp(I), hp(M), hp(E), hp(S), BTU/hr, TR, kcal/h |
| Energy & Work | Joule (J) | kg·m²·s⁻² | J, kJ, MJ, GJ, Wh, kWh, MWh, cal, kcal, BTU(IT), ft·lbf, therm, eV |
| Torque & Moment | Newton-meter (N·m) | kg·m²·s⁻² | N·m, kN·m, N·cm, N·mm, lbf·ft, lbf·in, ozf·in, kgf·m, kgf·cm |
| Dynamic Viscosity | Pascal-second (Pa·s) | kg·m⁻¹·s⁻¹ | Pa·s, mPa·s, Poise (P), Centipoise (cP), lbf·s/ft², reyn |
| Kinematic Viscosity | Square meter/s (m²/s) | m²·s⁻¹ | m²/s, Stokes (St), Centistokes (cSt), mm²/s, ft²/s, in²/s |
| Density | kg/m³ | kg·m⁻³ | kg/m³, g/cm³, g/mL, lb/ft³, lb/in³, lb/gal (US), slug/ft³, t/m³ |
| Volumetric Flow | Cubic meter/s (m³/s) | m³·s⁻¹ | m³/s, m³/h, L/s, L/min, CFM, CFS, GPM (US), GPH, bbl/day |
| Mass Flow | kg/s | kg·s⁻¹ | kg/s, kg/min, kg/h, t/h, lb/s, lb/min, lb/h, ton/h (US) |
| Thermal Conductivity | W/(m·K) | kg·m·s⁻³·K⁻¹ | W/(m·K), BTU/(hr·ft·°F), BTU·in/(hr·ft²·°F), cal/(s·cm·°C), kcal/(hr·m·°C) |
| Specific Heat | J/(kg·K) | m²·s⁻²·K⁻¹ | J/(kg·K), kJ/(kg·K), cal/(g·°C), kcal/(kg·°C), BTU/(lb·°F) |
| Velocity & Speed | m/s | m·s⁻¹ | m/s, km/h, mph, knot (kn), ft/s, in/s, Mach (STP), c (Speed of light) |
| Acceleration | m/s² | m·s⁻² | m/s², g (Standard gravity 9.80665 m/s²), ft/s², in/s², km/h², Gal |
⚡ Standard Engineering Conversion Factors & Formulas Reference
🎛️ Pressure & Mechanical Power Formulas
- • 1 bar = 100,000 Pa = 100 kPa = 0.1 MPa = 14.5038 psi
- • 1 psi = 6,894.757 Pa = 0.0689476 bar = 51.7149 Torr
- • 1 standard atm = 101,325 Pa = 1.01325 bar = 14.6959 psi = 760 Torr
- • 1 hp(I) (Mechanical) = 550 ft·lbf/s = 745.69987 W = 0.7457 kW
- • 1 hp(M) (Metric / PS) = 75 kgf·m/s = 735.49875 W = 0.7355 kW
- • 1 TR (Refrigeration) = 12,000 BTU/hr = 3.51685 kW = 3,024 kcal/h
💧 Torque, Viscosity & Fluid Flow Formulas
- • 1 N·m = 0.737562 lbf·ft = 8.850745 lbf·in = 0.101972 kgf·m
- • 1 lbf·ft = 1.355818 N·m = 12 lbf·in = 1.38255 kgf·m
- • 1 Pa·s = 1,000 cP = 10 Poise = 0.0208854 lbf·s/ft²
- • Kinematic Viscosity ν = μ / ρ (m²/s = Pa·s / (kg/m³))
- • 1 m³/h = 0.588578 CFM = 4.402868 GPM (US) = 0.277778 L/s
- • 1 CFM = 1.699011 m³/h = 0.471947 L/s = 7.480519 GPM (US)
🛡️ Engineering Unit Conversion Best Practices & Dimensional Safety
Always verify that both sides of an engineering equation share identical fundamental base SI dimensions ($kg, m, s, A, K$). Converting across incompatible dimensions (e.g. force to energy without distance) is mathematically invalid.
Avoid intermediate truncation by maintaining full 64-bit double precision during multi-stage calculations. Set output display decimals to 6 or use Scientific/Engineering notation for micro-scale or mega-scale parameters.
All conversion factors strictly adhere to standard physical constants established by ISO/IEC 80000, NIST Special Publication 811, and the CODATA fundamental physical constants registry.
🔗 Related Engineering & Physical Calculation Tools
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Convert meters, inches, feet, yards, miles, nautical miles, astronomical units, and light-years instantly.
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Compute 2D geometric surface areas and cross-sectional properties for mechanical and structural designs.
⌨️ Pro-User Desktop Keyboard Shortcuts Reference
17 Workspace AcceleratorsAccelerate your engineering workflow with built-in hotkeys for DevToys smart clipboard detection, rapid unit swapping, layout switching, and 1-click clipboard formatting:
| Key Combination | Category | Action & Purpose |
|---|---|---|
| Alt + P | Smart Clipboard & Actions | Smart Clipboard Auto-Detect: Inspect clipboard for engineering values, units, and expressions |
| Alt + D | Navigation & Bookmarks | Star / Favorite Tool: Toggle favorite bookmark status in local storage |
| Alt + V | Workspace & Layout | Cycle Layout Density: Switch between 2-Column Split Studio, Full-Width Stacked, and Compact |
| Alt + W | Operations & Units | Swap Units: Invert From and To conversion units |
| Alt + S | Developer API | Developer API Code Studio: Multi-language code snippets modal across 7 programming languages |
| Alt + R | Presets & Scenarios | Load Random Benchmark: Load real-world industrial engineering test scenarios |
| Alt + K / ? | Shortcuts & Help | Keyboard Shortcuts Guide: Open complete hotkeys cheatsheet dialog |
| / | Input & Focus | Focus Quantity Input: Immediately focus and select the numeric input field |
| Escape | Navigation & Modal | Close active modal dialog or reset quantity to default 100 |
| Alt + C | Quick Formats & Copy | Copy converted numeric value directly to clipboard |
| Ctrl + Enter | Quick Formats & Copy | Copy formatted conversion statement (e.g. 100 psi = 6.89476 bar) |
| Alt + 1 | Quick Formats & Copy | 1-Click Quick Copy: Raw numeric converted value |
| Alt + 2 | Quick Formats & Copy | 1-Click Quick Copy: Converted value with unit symbol |
| Alt + 3 | Quick Formats & Copy | 1-Click Quick Copy: Scientific notation representation |
| Alt + 4 | Quick Formats & Copy | 1-Click Quick Copy: Complete physical equivalence statement |
| Alt + 5 | Quick Formats & Copy | 1-Click Quick Copy: GitHub Flavored Markdown specification row |
| Alt + 6 | Quick Formats & Copy | 1-Click Quick Copy: RFC 4180 CSV spreadsheet data row |
❓ Frequently Asked Questions
How do I convert between psi and bar in engineering applications?
1 bar equals exactly 100,000 Pascals (100 kPa), while 1 psi (pound-force per square inch) is equal to approximately 6,894.76 Pascals. Therefore, to convert psi to bar, multiply the psi value by 0.0689476 (or divide by 14.5038). For example, a 3,000 psi hydraulic pressure equals 206.843 bar.
What is the difference between mechanical horsepower and metric horsepower?
Mechanical horsepower (imperial hp(I), 550 ft·lbf/s) equals approximately 745.7 Watts and is standard in North America and the UK. Metric horsepower (hp(M), PS, or CV, 75 kgf·m/s) equals approximately 735.5 Watts and is used in European automotive specifications. Electric horsepower (hp(E)) is defined as exactly 746 Watts in US motor manufacturing.
How is dynamic viscosity converted to kinematic viscosity?
Kinematic viscosity (ν) is calculated by dividing dynamic shear viscosity (μ) by the fluid density (ρ): ν = μ / ρ. In SI units, 1 Pascal-second (Pa·s) divided by 1 kg/m³ gives 1 m²/s. In laboratory CGS units, 1 Centipoise (cP) divided by specific gravity (g/cm³) yields Centistokes (cSt).
Can I convert volumetric flow rate from CFM to m³/h and L/s?
Yes! 1 CFM (cubic foot per minute) equals approximately 1.6990 m³/h (cubic meters per hour) or 0.4719 L/s (liters per second). Select the 'Volumetric Flow Rate' domain to view the complete conversion matrix across all industrial flow units.
How do I convert torque from Newton-meters (N·m) to foot-pounds (lbf·ft)?
1 Newton-meter equals approximately 0.737562 pound-force feet (lbf·ft). To convert N·m to lbf·ft, multiply by 0.737562. Conversely, to convert lbf·ft to N·m, multiply by 1.355818 (for example, 100 lbf·ft wheel torque = 135.58 N·m).
How do the engineering physical formula solvers (P=F/A, F=ma, P=τω) work?
The Physical Solvers tab provides closed-form engineering calculators for classic mechanics and thermodynamics equations. Enter any two known variables (such as force and contact area, or torque and RPM) and the solver applies dimensional homogeneity to compute the third parameter in real time.
How does batch conversion mode handle multi-line datasets and CSVs?
Batch Mode allows engineers and researchers to paste or import hundreds of measurement values at once. The engine parses the dataset, converts every row into the target unit simultaneously, and computes aggregate statistics (Count, Min, Max, Mean, Sum) with instant CSV, JSON, and Markdown export.
How can I integrate engineering unit conversions into my software via code snippets?
Click the '💻 API Code' button (or press Alt+S) to open the Developer API Code Snippets Studio. We provide verified, production-ready code implementations in JavaScript/TypeScript, Python 3, C99, Rust, Go, MATLAB, and cURL that utilize base SI conversion factors for high-precision math with 1-click standalone script downloads (.js, .py, .c, .rs, .go, .m, .sh) and click-to-copy target filename badges.
How do I export the entire unit conversion matrix for my engineering report?
Use the Full Conversion Matrix or Batch Mode export bars to download structured CSV spreadsheets, JSON reports, or GitHub Flavored Markdown specification tables (.md). You can configure a custom base filename, toggle ISO date suffixes, and click the interactive live target filename preview badge (📄 Target: <filename>) to copy the destination filename directly to your clipboard.
Are my engineering numbers, CAD parameters, and calculations kept private?
Yes, 100%. All unit transformations, dimensional calculations, and conversion matrices are computed purely client-side in your web browser via WebAssembly/JS. No engineering data, CAD dimensions, or calculation queries are sent over the network or stored on remote servers.