Unit converters
Convert everyday and scientific units without leaving the page.
Unit converters on pancalc translate measurements between metric, imperial, and specialty scales with exact conversion factors. Each page names the fields, default units, and pitfalls that cause silent errors in spreadsheets.
Reach for these tools when supplier specs, recipes, lab notebooks, or travel plans mix unit systems. The engine converts to a common base internally so you can focus on the physical quantity.
Practical work still requires judgment about significant figures — especially when converted values feed area, volume, or cost calculations downstream.
15 calculators
Bandwidth / Data Transfer Rate Converter
Convert bandwidth and data-transfer rates between Kbps, Mbps, Gbps, MB/s, and GB per hour while keeping the bits-versus-bytes distinction clear.
Data Storage Units Converter
Convert data storage units from bytes through petabytes, including decimal KB, MB, GB, TB and binary KiB, MiB, GiB, and TiB values.
Decimal Degrees ↔ DMS Converter
Convert latitude/longitude between decimal degrees and degrees-minutes-seconds. Use the calculator above. Free browser tool. Free browser tool.
Indian Number Scale Converter
Convert between Western thousands and Indian lakh (10⁵) and crore (10⁷) scales. Use the calculator above. Free browser tool. Free browser tool.
Length Converter
Convert length and distance between millimeters, centimeters, meters, kilometers, inches, feet, yards, and miles using exact standard factors.
Months to Years Calculator
Convert months, years, weeks, and days for loan terms, ages, subscriptions, and project timelines using the calculator’s shared time units.
Pressure Converter
Convert pressure between pascals, kilopascals, bar, atmospheres, and pounds per square inch for engineering, weather, tire, and process work.
Pressure–Altitude Calculator
Estimate barometric pressure from altitude using the international standard atmosphere. Use the calculator above. Free browser tool.
PSI ↔ Inches of Water Converter
Convert between pounds per square inch and inches of water column. Use the calculator above. Use the calculator above. Free browser tool.
Scale Factor Calculator
Scale a real-world length to a model length using a ratio (e.g. 1:87 HO scale). Use the calculator above. Free browser tool. Free browser tool.
Temperature Converter
Convert temperatures between Celsius, Fahrenheit, and Kelvin with the correct scale offsets for weather, cooking, science, and engineering calculations.
Torque & Angular Force Converter
Convert torque between newton-meters, foot-pounds, and inch-pounds for fastener specifications, engines, tools, and mechanical engineering work.
Universal Unit Converter
Quick length conversion hub between meters, feet, inches, and kilometers. Use the calculator above. Use the calculator above. Free browser tool.
Viscosity Units Converter
Convert dynamic viscosity between pascal-seconds, poise, and centipoise for fluid specifications, lab data, lubrication, and process calculations.
Weight & Mass Converter
Convert mass between kilograms, grams, pounds, and ounces for recipes, shipping, fitness, science, and everyday measurements with standard factors.