The Functional Independence Measure for Children (WeeFIM) is a simple tool for assessing the functional independence of three domains: mobility, self-care, and cognition. Children are usually apprehensive about performing standardized structured language or developmental tests, and only licensed professionals can administer standardized tests. We attempted to apply the Functional Independence Measure for Children for assessing children with developmental delay and to assess for any correlation of these scores with standardized language tests. We recruited 49 children with developmental delay, and the Functional Independence Measure for Children was administered. Two standardized language tests (Symbolic Play Test and Reynell Language Developmental Scale) were administered to assess language age. There was a significant correlation between Functional Independence Measure for Children scores with both verbal comprehension age and verbal expression age. There was no correlation of Functional Independence Measure for Children scores with gender, age, or having domestic helpers. Having trained staff administer the Functional Independence Measure for Children can reliably correlate the current language ability of a child with developmental delay; thus, the test can be used as a quick screening tool for targeted training.