Speed
m/s, km/h, mph, and knots.
Dashboard
Motion, energy, waves, and optics.
Physics calculators plus quick widgets for velocity, force, energy, and power — everything a student or engineer reaches for.
32 tools6 quick widgetsOffline · No sign-up
Quick convert
Instant unit conversion.
Live conversions with zero navigation. Pin the widgets you reach for most.
Force
Newtons, kilonewtons, and pound-force.
Energy
Joules, calories, and watt-hours.
Power
Watts, kilowatts, and horsepower.
Length
Convert millimeters, meters, miles, and more.
Time
Milliseconds through years, accurately.
Favorites
Pin tools and widgets from anywhere in this dashboard. They sync across your device.
Recent activity
Nothing yet. Convert or calculate on this dashboard and the last 100 actions appear here.
Coverage
Tools per category
32 tools across 1 category.
- Physics32
Your usage
Most-used items
Aggregated from your recent activity on this device. Stays local unless you sync.
Use a widget or open a calculator — usage will appear here.
FAQ
About Physics Dashboard.
Do widgets and history sync across dashboards?
Favorites and widget pins are global. History entries are tagged by dashboard so each dashboard shows only its own activity — with a global export available on the hub.
Are widgets accurate for professional use?
Every widget uses the same Universal Converter Engine that powers our full converter tools — deterministic factor + offset math, IEEE-754 rounding, and validated non-negative constraints where required.
Can I use this offline?
Yes. Every dashboard is fully offline-first — no external APIs are called for calculations. Installing the app to your home screen keeps it available with no network.
Which unit system do the calculators use?
SI throughout — metres, kilograms, seconds, newtons, joules, pascals, volts. Where mixed units are common (rpm, degrees, cm optics) the input labels state the unit explicitly.
What value of g do you use?
Standard gravity g = 9.80665 m/s² by default, editable per calculator so you can model any planet or elevation.
How precise are the results?
Physical constants are CODATA 2018. Results are formatted with 4–6 significant figures and switch to scientific notation for very small or very large magnitudes.
Do these calculators require an internet connection?
No — every physics engine is pure JavaScript running in your browser. Nothing is uploaded, cached, or logged.
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