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Contract Damages Calculator

Calculate expectation, reliance, and restitution damages for breach of contract, with reliance capped under the Restatement's losing-contract rule.

About this calculator

This calculator computes three distinct, real measures of contract damages recognized in contract law -- expectation, reliance, and restitution -- and recommends whichever produces the largest recoverable amount, since a plaintiff generally elects the theory most favorable to their claim. Expectation Damages (the "benefit of the bargain" measure) is Full Contract Value minus Value Already Received minus Mitigation Savings minus Cost of Performance Avoided, aiming to put the non-breaching party in the position full performance would have -- Restatement (Second) of Contracts § 347 defines this as loss in value plus other loss minus cost avoided minus loss avoided, and Cost of Performance Avoided is that missing "cost avoided" term: a party who no longer has to finish its own performance after a breach (typically a supplier or contractor, not a buyer) must deduct what it saved by not finishing. Reliance Damages is Reliance Costs minus Mitigation Savings, covering out-of-pocket expenses incurred in reliance on the contract rather than the bargained-for benefit itself -- but Restatement § 349 and its comment on "losing contracts" cap reliance recovery at what the breaching party can prove the non-breaching party would have received under full performance, so reliance can never put a plaintiff in a BETTER position than the deal itself was worth. Because this calculator does not collect a party's own remaining cost of performance, Full Contract Value is used as that practical ceiling: reliance recovery here never exceeds Full Contract Value, and Reliance Recovery Was Capped flags when that ceiling actually bound.

Restitution Damages equals Benefit Conferred directly, addressing unjust enrichment rather than either measure of loss, and is not subject to the reliance cap. Consequential Damages -- foreseeable indirect losses -- are added on top of both the expectation and reliance totals (after the reliance cap is applied) but not to restitution, since restitution is not a loss-based measure at all. Mitigation Savings reduces two of the three theories simultaneously (expectation and reliance) because failing to mitigate avoidable losses can undercut either claim, while it never affects restitution, which asks what the breaching party gained rather than what the other party lost. This calculator is a simplified illustration of these legal doctrines, not a substitute for advice from a licensed attorney about a specific contract and jurisdiction.

Inputs

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Results

Recommended Claim

$305,000.00

≈ 7 Teslas

Expectation Damages$305,000.00
Reliance Damages$100,000.00
Restitution Damages$150,000.00
Base Expectation$255,000.00
Base Reliance (Capped)$50,000.00
Reliance Recovery Was CappedNo
How to Use This Calculator
  1. Enter the full contract value and the value already received before breach.
  2. Set reliance costs (out-of-pocket expenses incurred), benefit conferred to breaching party, and mitigation savings.
  3. Enter consequential damages if they were foreseeable at the time of contracting, and Cost of Performance Avoided if you are the party still owed performance (e.g. a supplier who stopped work).
  4. Review Expectation Damages, Reliance Damages, Restitution Damages, and Recommended Claim — check Reliance Recovery Was Capped to see whether the losing-contract cap reduced your Reliance figure.
  5. The recommended claim reflects the highest defensible measure — consult counsel before filing.

How the result changes with Full Contract Value

Full Contract ValueRecommended Claim
$250,000.00$150,000.00
$375,000.00$180,000.00
$750,000.00$555,000.00
$1,250,000.00$1,055,000.00

What each input means

Full Contract Value
Total value if contract had been fully performed. Also caps how much can be recovered as Reliance Damages (see FAQ).
Value Already Received
Value of performance already received before breach.
Reliance Costs
Out-of-pocket costs incurred in reliance on the contract.
Benefit Conferred
Value of benefit you conferred to the breaching party.
Mitigation Savings
Costs avoided or recovered through mitigation efforts after the breach.
Consequential Damages
Foreseeable indirect damages from the breach.
Cost of Performance Avoided
Your OWN cost of finishing performance that you no longer have to spend, now that the contract was breached — relevant if you are the party still owed performance (e.g. a supplier or contractor). Enter 0 if you are the party who still owes payment, since a buyer generally has no further performance cost to avoid.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    7 parameters
    Full Contract Value = 500000, Value Already Received = 200000, Reliance Costs = 75000, Benefit Conferred = 150000, Mitigation Savings = 25000, Consequential Damages = 50000, Cost of Performance Avoided = 20000 = 7 input(s) provided
  2. Calculate Recommended Claim
    Recommended Claim
    305000 = $305,000
  3. Calculate Expectation Damages
    Expectation Damages
    305000 = $305,000
  4. Calculate Reliance Damages
    Reliance Damages
    100000 = $100,000

Engine last updated . Checked against 3 independently-derived tests — how we verify calculators. Built by Paul Gunder, a software engineer, not a licensed financial, medical, or legal professional.

Frequently Asked Questions

Why is Reliance Damages capped, and what caps it?

Restatement (Second) of Contracts § 349 lets the breaching party prove that the non-breaching party would have suffered a loss under full performance ("the losing contract" rule) and reduce reliance recovery by that amount -- the Restatement's own commentary says the practical effect is that reliance recovery ends up matching expectation-based recovery in that scenario, so a plaintiff can never use the reliance theory to end up in a BETTER position than the contract itself was ever worth. This calculator approximates that ceiling as Full Contract Value, since it does not collect a party's own remaining cost of performance. Reliance Recovery Was Capped shows "Yes" whenever Reliance Costs minus Mitigation Savings exceeds Full Contract Value.

What is Cost of Performance Avoided, and when should I enter a nonzero value?

It is the missing "cost avoided" term from Restatement § 347's expectation-damages formula (loss in value + other loss − cost avoided − loss avoided): a party who no longer has to finish its own performance after a breach saves that cost, and the saved amount reduces Expectation Damages. Enter a nonzero value only if you are the party still owed performance -- typically a supplier or contractor who stopped work -- not if you are the party who still owes payment, since a buyer generally has no further "performance" cost to avoid.

How does Mitigation Savings reduce my damages under two different theories at once?

Mitigation Savings is subtracted from both Expectation Damages and Reliance Damages independently, because the duty to mitigate avoidable losses applies under either theory -- a plaintiff generally cannot recover for harm they could have reasonably avoided. It has no effect on Restitution Damages, since that theory measures what the breaching party gained rather than what the other party lost or spent.

What's the difference between expectation, reliance, and restitution damages?

Expectation damages put the non-breaching party where full performance would have -- the benefit of the bargain. Reliance damages instead reimburse out-of-pocket costs spent relying on the contract, regardless of what the bargain itself was worth, but capped so they can't exceed what full performance would have been worth. Restitution damages return whatever benefit was conferred on the breaching party, based on preventing their unjust enrichment rather than compensating the other side's loss.

Should I rely on the Recommended Claim figure to decide how much to sue for?

No -- Recommended Claim reflects the highest of three simplified, formulaic measures, but which theory actually applies, whether it can be pleaded in the alternative, and how a court would value each element depends on the specific facts, contract terms, and jurisdiction. This calculator is an illustration of the three doctrines, not legal advice; consult a licensed attorney before filing a claim.

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