Mathematics
Average of two numbers
Calculates the arithmetic average of two numbers or the missing number.
Related calculators
Conductance from resistance
Calculates conductance as the reciprocal of resistance.
Current from charge and time
Calculates current from electric charge and time.
Electric charge from current and time
Calculates electric charge from current and time.
Percentage change
Calculates percentage change, old value, or new value.
Percentage of value
Calculates the part, percent, or whole from part = percent * whole / 100.
Proportion solver
Solves the missing value in the proportion a / b = c / d.