Finance

Instant, private, and free

Loss Ratio Calculator.

Calculate insurance losses as a percentage of earned premiums.

On-device calculationNo signup

Set your values

Results update as you type.

02 / ANSWER

Incurred losses

Earned premiums

Loss ratio

0.00%%

FAQs

How does the loss ratio calculator work?

Enter the requested values to receive a deterministic result. No live market, tax, or jurisdiction data is inferred.

Use Cases

Insurance Underwriting Performance

Evaluate how well an insurance company is managing claims relative to premium income. A lower ratio suggests better underwriting discipline.

Example: An auto insurer with $5M in losses and $10M in premiums has a 50% loss ratio.

Premium Pricing Review

Assess whether current premium levels are adequate to cover claims. Helps in adjusting rates or identifying segments with high loss ratios.

Example: If a product line shows a 90% loss ratio, consider raising premiums.

Frequently Asked Questions

What is a loss ratio?: A loss ratio is the ratio of incurred losses to earned premiums, expressed as a percentage. It measures an insurer's claims payouts relative to the premiums it collects, indicating underwriting profitability.
How do I calculate the loss ratio?: Divide incurred losses by earned premiums and multiply by 100. For example, if incurred losses are $60,000 and earned premiums are $100,000, the loss ratio is 60%.
What is a good loss ratio?: A loss ratio below 100% indicates the insurer is collecting more in premiums than it pays in claims. However, a 'good' ratio varies by line of business; typically, 60-70% is considered healthy for many insurance segments.

Tips & Common Mistakes

Tips

Ensure you use incurred losses (including reserves) and earned premiums, not written premiums, for accurate results.
Compare your loss ratio to industry benchmarks for your specific insurance line to gauge performance.
Track loss ratio trends over time to identify emerging risk patterns or pricing issues.
Use this calculator as a quick reference; for formal analysis, consult actuarial guidance.

Common Mistakes to Avoid

Using written premiums instead of earned premiums, which can distort the ratio.
Forgetting to include loss adjustment expenses in incurred losses, leading to an understated ratio.
Comparing loss ratios across different insurance lines without adjusting for their unique risk profiles.

Last updated: August 13, 2026

Use Cases

Insurance Underwriting Performance

Evaluate how well an insurance company is managing claims relative to premium income. A lower ratio suggests better underwriting discipline.

Example: An auto insurer with $5M in losses and $10M in premiums has a 50% loss ratio.

Premium Pricing Review

Assess whether current premium levels are adequate to cover claims. Helps in adjusting rates or identifying segments with high loss ratios.

Example: If a product line shows a 90% loss ratio, consider raising premiums.

Frequently Asked Questions

What is a loss ratio?

A loss ratio is the ratio of incurred losses to earned premiums, expressed as a percentage. It measures an insurer's claims payouts relative to the premiums it collects, indicating underwriting profitability.

How do I calculate the loss ratio?

Divide incurred losses by earned premiums and multiply by 100. For example, if incurred losses are $60,000 and earned premiums are $100,000, the loss ratio is 60%.

What is a good loss ratio?

A loss ratio below 100% indicates the insurer is collecting more in premiums than it pays in claims. However, a 'good' ratio varies by line of business; typically, 60-70% is considered healthy for many insurance segments.

Tips & Common Mistakes

Tips

Ensure you use incurred losses (including reserves) and earned premiums, not written premiums, for accurate results.
Compare your loss ratio to industry benchmarks for your specific insurance line to gauge performance.
Track loss ratio trends over time to identify emerging risk patterns or pricing issues.
Use this calculator as a quick reference; for formal analysis, consult actuarial guidance.

Common Mistakes to Avoid

Using written premiums instead of earned premiums, which can distort the ratio.
Forgetting to include loss adjustment expenses in incurred losses, leading to an understated ratio.
Comparing loss ratios across different insurance lines without adjusting for their unique risk profiles.

Finance

Instant, private, and free

Loss Ratio Calculator.

Calculate insurance losses as a percentage of earned premiums.

On-device calculationNo signup

Set your values

Results update as you type.

02 / ANSWER

Incurred losses

Earned premiums

Loss ratio

0.00%%

FAQs

How does the loss ratio calculator work?

Enter the requested values to receive a deterministic result. No live market, tax, or jurisdiction data is inferred.

Related Calculators

Effective Duration CalculatorCalculate effective duration from explicit user inputs with transparent assumptions and instant, debounced results.Effective Interest Rate CalculatorCalculate effective interest rate from explicit user inputs with transparent assumptions and instant, debounced results.EMV CalculatorCalculate emv from explicit user inputs with transparent assumptions and instant, debounced results.Ending Inventory CalculatorCalculate ending inventory from explicit user inputs with transparent assumptions and instant, debounced results.Enterprise Value CalculatorCalculate enterprise value from explicit user inputs with transparent assumptions and instant, debounced results.EOQ CalculatorCalculate eoq from explicit user inputs with transparent assumptions and instant, debounced results.

Use Cases

Insurance Underwriting Performance

Evaluate how well an insurance company is managing claims relative to premium income. A lower ratio suggests better underwriting discipline.

Example: An auto insurer with $5M in losses and $10M in premiums has a 50% loss ratio.

Premium Pricing Review

Assess whether current premium levels are adequate to cover claims. Helps in adjusting rates or identifying segments with high loss ratios.

Example: If a product line shows a 90% loss ratio, consider raising premiums.

Frequently Asked Questions

What is a loss ratio?: A loss ratio is the ratio of incurred losses to earned premiums, expressed as a percentage. It measures an insurer's claims payouts relative to the premiums it collects, indicating underwriting profitability.
How do I calculate the loss ratio?: Divide incurred losses by earned premiums and multiply by 100. For example, if incurred losses are $60,000 and earned premiums are $100,000, the loss ratio is 60%.
What is a good loss ratio?: A loss ratio below 100% indicates the insurer is collecting more in premiums than it pays in claims. However, a 'good' ratio varies by line of business; typically, 60-70% is considered healthy for many insurance segments.

Tips & Common Mistakes

Tips

Ensure you use incurred losses (including reserves) and earned premiums, not written premiums, for accurate results.
Compare your loss ratio to industry benchmarks for your specific insurance line to gauge performance.
Track loss ratio trends over time to identify emerging risk patterns or pricing issues.
Use this calculator as a quick reference; for formal analysis, consult actuarial guidance.

Common Mistakes to Avoid

Using written premiums instead of earned premiums, which can distort the ratio.
Forgetting to include loss adjustment expenses in incurred losses, leading to an understated ratio.
Comparing loss ratios across different insurance lines without adjusting for their unique risk profiles.

Last updated: August 13, 2026