Meeting the six World Health Assembly nutrition targets by 2025 will require significant resources to scale up nutrition interventions globally. Estimates indicate the total cost could be tens of billions of dollars annually. Current spending on nutrition is a fraction of what is needed to meet the targets. Various scenarios will be modeled to quantify the resource gaps and identify domestic and external financing pathways that could help close the gaps from public and private sources. The goal is to inform financing discussions and commitments at upcoming nutrition summits and financing for development meetings.