Standard Cost Variance Calculator

About this calculator

In standard costing, businesses set a standard cost — the expected cost of producing a unit under normal conditions — in advance, then compare it against the actual cost once production happens. The variance is the difference: Actual cost − Standard cost, expressed both as an amount and a percentage, and labeled favorable when actual cost comes in below standard, or unfavorable when it runs over.

Cost accountants and manufacturing controllers use variance analysis to flag problems early — an unfavorable material variance might point to a supplier price increase, while an unfavorable labor variance might signal overtime or inefficiency — and roll these variances up into management reports that explain why actual profit differs from the budget.