Free Grant Calculators
Interactive tools to help you estimate key federal grant budget figures, grant actions, and timelines.
De Minimis and Negotiated Indirect Rate with MTDC Calculator
Calculate Modified Total Direct Costs (MTDC), indirect costs using the de minimis rate or a negotiated rate, and your total project budget.
Open CalculatorGrant Budget Escalator Calculator
Project multi-year grant budgets with category-specific annual escalation rates, including personnel COLA, fringe tied to personnel, and one-time equipment costs.
Open CalculatorFederal Reporting Deadlines on Awarded Grants
Based on the requirements of the federal 2 CFR 200 Uniform Guidance, your grant start date, and period of performance, this calculator provides a useful starting point for your implementation planning.
Open CalculatorFederal Per Diem Calculator for Business Trips
Look up official GSA per diem rates and calculate total travel reimbursement for grant-funded trips, including the 75% first/last-day M&IE reduction and meal deductions.
Open CalculatorFederal Procurement Threshold Calculator
Determine the correct procurement method for a planned purchase under 2 CFR § 200.320 — micro-purchase, simplified acquisition, or formal procurement — based on current federal thresholds.
Open CalculatorThese calculators are provided for planning purposes only and do not constitute financial or compliance advice. Results are estimates based on user-provided inputs and general assumptions; they may not reflect current federal, state, or agency-specific requirements. Always verify all figures against the official funding opportunity, applicable regulations (e.g., 2 CFR 200), and your organization's information. Grants Republic is not responsible for errors or outcomes resulting from reliance on this tool. Please see our full Terms of Use / Disclaimer page for more information.
Need help with your budget?
Our calculators are planning tools. If you would like professional support building a compliant federal grant budget, we are happy to talk.