Proposal Budget Converter
Convert project budgets between USD, EUR, AFN, and other currencies at donor rates. Enter values for instant results with step-by-step formulas.
Formula
Total = (Amount × Rate) × (1 + Overhead%) × (1 + Contingency%)
The converter multiplies the source amount by the exchange rate, then adds the overhead percentage for indirect costs, and finally adds a contingency percentage for unforeseen expenses. Custom donor rates can override market rates.
Worked Examples
Example 1: USAID Project Budget Conversion
Problem: Convert a $50,000 USD project budget to EUR with 7% overhead and 5% contingency.
Solution: Base amount: $50,000 USD\nExchange rate (USD to EUR): 0.92\nConverted: 50,000 × 0.92 = €46,000.00\nOverhead (7%): €46,000 × 0.07 = €3,220.00\nSubtotal: €49,220.00\nContingency (5%): €49,220 × 0.05 = €2,461.00\nTotal budget: €51,681.00
Result: Total budget: €51,681.00
Example 2: Afghanistan Program Budget
Problem: Convert a €25,000 EUR budget to AFN with 10% overhead and 3% contingency.
Solution: Base amount: €25,000 EUR\nExchange rate (EUR to AFN): 69.5 / 0.92 ≈ 75.54\nConverted: 25,000 × 75.54 = AFN 1,888,500\nOverhead (10%): AFN 188,850\nSubtotal: AFN 2,077,350\nContingency (3%): AFN 62,320.50\nTotal: AFN 2,139,670.50
Result: Total budget: AFN 2,139,670.50
Frequently Asked Questions
What is an overhead rate in a project proposal budget?
An overhead rate, also called indirect cost rate or headquarters cost recovery, is a percentage added to direct project costs to cover the implementing organization's administrative and support expenses. These include head office salaries, rent, utilities, IT systems, human resources, legal compliance, and other institutional costs that cannot be directly attributed to a single project. Common overhead rates range from 5% to 15% depending on the donor and organization. USAID typically allows a Negotiated Indirect Cost Rate Agreement (NICRA), while UN agencies often cap overhead at 7%. Some donors distinguish between program support costs and management costs as separate budget lines.
How do I convert a budget between USD and Afghan Afghani (AFN)?
Converting a budget between USD and AFN requires careful consideration of the exchange rate source and timing. The official Da Afghanistan Bank rate, the UN operational rate, and the informal market rate can differ significantly. For formal proposals to international donors, use the UN operational exchange rate published monthly by the UN Treasury, as this is widely accepted. For USAID-funded projects, use the rate specified in the award documentation. Always document the rate source, date, and any donor-specific requirements. Given the volatility of the AFN, include a currency fluctuation contingency of at least 5% and plan for quarterly budget reviews to assess the impact of rate changes.
What formula does Proposal Budget Converter use?
The formula used is described in the Formula section on this page. It is based on widely accepted standards in the relevant field. If you need a specific reference or citation, the References section provides links to authoritative sources.
Can I use Proposal Budget Converter on a mobile device?
Yes. All calculators on NovaCalculator are fully responsive and work on smartphones, tablets, and desktops. The layout adapts automatically to your screen size.
Is my data stored or sent to a server?
No. All calculations run entirely in your browser using JavaScript. No data you enter is ever transmitted to any server or stored anywhere. Your inputs remain completely private.
How do I get the most accurate result?
Enter values as precisely as possible using the correct units for each field. Check that you have selected the right unit (e.g. kilograms vs pounds, meters vs feet) before calculating. Rounding inputs early can reduce output precision.