Conversions

Select a conversion or type freely: “km to mile”, “5ft 11in to cm”, “3/8" to mm”, “kg on earth to mars”

Conversion

Input Output

Quick Picks

Format

Decimals Trim trailing zeros

Month = 30 days, year = 365 days. No external data used.

S-V.P.A.M. style

SCIENTIFIC

DEG RAD SCI ENG

Copies the evaluated value.

Quick Calculators

Everyday + engineering. No APIs. No prices. Just formulas. Each card gives multiple outputs + copy.

Fuel Consumption

L/100km km/L

MPG (US) MPG (UK)

Distance (km) Fuel used (L)

L/100km—

km/L—

Tank (L) Consumption (L/100km)

Or km/L (optional)

Estimated range (km)—

Planned distance (km) Consumption (L/100km)

Current fuel in tank (L) (optional)

Fuel needed (L)—

Additional to add (L)—

AC / Room BTU (simple)

Area (m²) Ceiling (m)

Insulation Sun

People (optional) Window area m² (optional)

BTU/h (approx)—

kW—

Suggestion—

Approximation. Real load depends on building, orientation, infiltration, etc.

Paint Needed

Area (m²) Coats

Coverage (m²/L) Waste %

Can size (L)

Liters needed—

Cans needed—

Floor Material

Area (m²) Waste %

Pack coverage (m²) (optional)

Required m²—

Packs needed—

Power (V / A / W)

Voltage (V) Current (A)

Power (W) Hours (optional)

Voltage (V)—

Current (A)—

Power (W)—

Energy (kWh)—

AC Power (P/Q/S, PF, φ)

Mode

Voltage (V) Current (A)

PF (cosφ) Active Power (kW) (optional)

S (kVA)—

P (kW)—

Q (kVAr)—

PF—

φ (deg)—

PF Correction (Capacitor kVAr)

P (kW) PF current

PF target

Required Qc (kVAr)—

Flow + Pipe Velocity

Flow (L/min) Pipe diameter (mm)

Flow (m³/h)—

Flow (L/s)—

Velocity (m/s)—

Slope & Angle

Rise Run

Or slope % (optional)

Slope %—

Angle (deg)—

1 : X—

Rotation (RPM / Hz / rad/s)

RPM Hz

rad/s

RPM—

Hz—

rad/s—

Torque / Power / RPM

Torque (N·m) RPM

Power (kW)

Torque (N·m)—

RPM—

Power (kW)—

Dead Pixel Test

Fullscreen Red/Green/Blue/White screens to spot stuck/dead pixels. Controls: Space/→ next, ← prev, Esc exit.

Auto-cycle (3s)

Tip: do the test in a dark room.

Open standalone page (best for SEO)

IP & Location

Check your public IP and approximate IP-based location. Optional GPS asks permission.

Public IP: —

ISP/Org: —

City: —

Region: —

Country: —

Timezone: —

Approx Coords: —

GPS Coords: —

Accuracy: —

Maps: —

Open standalone page (best for SEO)