Can I use this calculator for policies that span a leap year?

Yes. The calculator uses real calendar days, so a full-year term that crosses February 29 in a leap year counts 366 days for the total day count.

What does the 'cancellation date' option control?

By default, the cancellation date is treated as the first day without coverage and is not counted as earned. If your policy counts the cancellation date as the last covered day, you can switch that option in the calculator.

Does the tool annualize the premium, or do I need to enter an annual amount?

No. Enter the actual policy-term premium — the amount for this specific term — not an annual figure you then prorate by hand.

Can I copy or print the calculation results?

Yes. The calculator provides Copy result and Print options to save or share the output.

Fractions, Percentages & RatiosFree Tool

Pro Rata Calculator

Provided byProRataWiseproratawise.com

ProRataWise provides a free calculator for computing pro rata insurance premiums. Users input their policy dates and ...

Use This Tool

financial calculator pro-rata insurance premium-calculator policy earned-premium

Screenshot of Pro Rata Calculator on ProRataWise — proratawise.comOpen the live tool →

About this tool

What Pro Rata Calculator does

ProRataWise is a free, browser-based calculator that computes earned and unearned insurance premiums using exact policy dates. Users input a policy-term premium and start/end dates to instantly see the day count, pro rata factors, earned premium, and an estimated return premium. The output includes the underlying formula and a clear breakdown of how the premium is allocated across the policy period, helping users understand pro rata principles and verify adjustments without needing to log in or create an account.

Step by step

How to use the ProRataWise Pro Rata Calculator

1
Enter the total policy-term premium amount (commas and dollar signs accepted)
2
Input the policy start date and end date
3
Optionally set a cancellation/as-of date and choose whether it counts as a covered day
4
Click Calculate to view the day count, earned/unearned premium, daily rate, factors, and estimated return premium

Is it right for you

Best for

Insurance professionals, brokers, and policyholders who need to quickly and accurately calculate earned and unearned premiums for a specific policy term using exact calendar dates.

Limitations

Results are a straight-line estimate and may not account for fees, minimum earned premium, short-rate rules, or taxes
Day-count method depends on the selected option for the cancellation date
Tool does not support switching between different unit systems (e.g., metric vs. imperial) as it is designed for premium calculations

Questions

Pro Rata Calculator FAQ

Can I use this calculator for policies that span a leap year?: Yes. The calculator uses real calendar days, so a full-year term that crosses February 29 in a leap year counts 366 days for the total day count.
What does the 'cancellation date' option control?: By default, the cancellation date is treated as the first day without coverage and is not counted as earned. If your policy counts the cancellation date as the last covered day, you can switch that option in the calculator.
Does the tool annualize the premium, or do I need to enter an annual amount?: No. Enter the actual policy-term premium — the amount for this specific term — not an annual figure you then prorate by hand.
Can I copy or print the calculation results?: Yes. The calculator provides Copy result and Print options to save or share the output.

Keep Exploring

Similar tools

Based on shared tags

Time Value of Money Calculator2 options

Calculates both present and future values of money based on compounding interest rates. This financial tool determines what an amount of cash today is worth in the future, or conversely, what a specific sum expected at a later date is worth right now. Users input variables such as the periodic payment amount, the number of periods, and the discount rate to accurately model how investments grow over time or how lump sums can be financed. Individuals interested in personal finance, retirement planning, or long-term investment strategies find this calculator highly useful. Financial analysts and students also rely on it for academic study and professional valuation tasks. It provides a fundamental understanding of compounding returns, allowing users to make informed decisions regarding savings goals, loan repayments, and overall wealth accumulation over extended time frames.

2 options📊 Investing & Markets

Credit Utilization Calculator3 options

Maintaining a healthy credit score often depends on the delicate balance between available limits and outstanding debt. Credit Utilization Calculator analyzes individual account data and total aggregate ratios to provide a comprehensive view of how revolving balances affect financial standing. By entering current balances and limits for each card, users gain immediate insight into their usage patterns and how lenders might perceive their creditworthiness. The calculator extends beyond basic numbers by sorting results into color-coded brackets that represent different levels of credit health. It offers actionable guidance on score impacts and specific recommendations for optimizing ratios to improve long-term standing. This provides a practical roadmap for anyone looking to strengthen their financial profile before applying for new credit or simply wanting to better manage their existing debt.

3 options💳 Debt & Credit

Credit Card Payoff Calculator4 options

Calculates how long it will take to pay off credit card debt with a fixed monthly payment, showing total interest paid and declining balance over time. Helps users manage their debt by providing insights into how their credit card payments impact their balance and financial health. Ideal for anyone looking to plan their debt repayment strategy or understand the costs associated with carrying high-interest credit card balances.

4 options💳 Debt & Credit