Use this calculator to verify a hand calculation, normalize a value before another tool, or make the exact arithmetic convention explicit in a reproducible workflow.

Values

Value list.

Weights

Corresponding weight list.

The formula below determines the tool output. Weighted sum: The calculated weighted sum.^[1]

Calculations use JavaScript number arithmetic. Binary floating-point representation can make some decimal results inexact, and values outside the supported numeric range can overflow or lose precision. Round only for presentation unless the selected rounding tool is itself the intended operation.

Use the inverse operation to check a result when one exists: addition pairs with subtraction, multiplication with division, and powers with roots. For rounding or normalization tools, retain the unmodified value when later calculations still require full precision.

• Golden Ratio Calculator

  Split a total length into two parts whose ratio is the golden ratio φ.

• Silver Ratio Calculator

  Split a total length into two parts whose ratio is the silver ratio δ = 1 + √2.

• Linear Blend Calculator

  Blend two numbers linearly with an interpolation factor t, where zero returns a and one returns b.