---
type: "fhirpath-function"
title: "FHIRPath Function: toDecimal"
function: "toDecimal"
category: "Conversion"
section: "5.5.6.1"
source: "fhirpath/functions.json"
---
# FHIRPath Function: toDecimal
_No canonical section match found in index.md._
## Summary
- **Category**: Conversion
- **Section**: `5.5.6.1`
- **Return Type**: `Decimal`
- **Empty Input Result**: `empty`
- **Errors on Multiple Input**: `true`
## Description
If the input collection contains a single item, this function will return a single decimal if the item is an Integer or Decimal, a String convertible to a Decimal, or a Boolean.
## Arguments
- none
## Type Mapping
- `Integer-Decimal`
- `Decimal-Decimal`
- `String-Decimal`
- `Boolean-Decimal`
## Example
```fhirpath
'123.45'.toDecimal() // returns 123.45
```