[#GetVirtualTransactionSize-04]
= GetVirtualTransactionSize
:mrdocs:

Compute the virtual transaction size (weight reinterpreted as bytes).

== Synopsis

Declared in `<policy/policy.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int64_t
GetVirtualTransactionSize(
    int64_t nWeight,
    int64_t nSigOpCost,
    unsigned int bytes_per_sigop);
----

== Return Value

Virtual transaction size in vB.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *nWeight*
| Transaction weight.
| *nSigOpCost*
| Signature operation cost of the transaction.
| *bytes_per_sigop*
| Bytes charged per signature operation.
|===


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