V=IR
欧姆定律
V = I × R 可视化
v=at
运动学计算器
运动方程可视化
ρ
密度计算器
质量、体积、密度
F=ma
牛顿第二定律
F = m × a 可视化
½N
半衰期计算器
放射性衰变曲线
PV
理想气体定律
PV = nRT 带活塞视觉
Ω
Resistor Color Code
Decode resistor color bands and reverse lookup standard color codes
V/R
Voltage Divider
Solve resistor divider voltage, input, and resistor values
RC
RC Time Constant
Calculate RC time constants and charge or discharge curves
proj
Projectile Motion Calculator
Calculate projectile flight time, range, height, and velocity components
WEP
Work Energy Power Calculator
Calculate work, kinetic energy, potential energy, and power
wave
Waves Calculator
Solve wave speed, frequency, wavelength, and period
🧪
Molarity Calculator
Calculate molarity, moles, or volume from the concentration formula C = n/V
💧
Dilution Calculator
Solve dilution problems with C₁V₁ = C₂V₂ for any unknown variable
⚗️
Molar Mass Calculator
Calculate molar mass from a molecular formula like H2O, NaCl, or C6H12O6