Standard cost in the cost which we are mentioned in the 
budget for the particular job or for a particular period.

Standard cost is for standard output. It may varies from 
actual cost due to cost variance and efficiency variance.

STANDARD COST-THE COST WHICH IS EXPECTED TO BE IS STANDARD
COST.
ST.COST-ACTUAL COST= VARIANCE.

standard cost is a cost which can be determined by the 
budgeting process.it can be determined on the basis of past 
performance and data.s.c is determined to keep control over 
the expenses or cost.

Standard cost is like budgeted cost or estimates cost for a 
unit. 
Standard cost-actual cost=Vairance in + or - can determine 
cost difference for which reason can be find out to reduce 
the cost or match with standard cost.

actual cost should less or match with standard cost.

Another defination
Standard cost: cost has accured for same units or product 
in past years.

The planned or expected costs. Often used in manufacturing 
for accounting for inventories and production. When actual 
costs differ from the standard costs, variances are 
reported. To learn more, see Explanation of Standard Costs 
& Variances.