Liquidated Damages Calculator — Instant Damage Estimate
Calculate liquidated damages quickly. Enter daily rate and delay days to get your total. Includes formula, examples, and legal disclaimer. Free to use.
Calculate liquidated damages quickly by entering the agreed daily rate and the number of delay days. Our Liquidated Damages Calculator gives you the total estimated damages based on a pre-agreed contractual rate — commonly used in construction, infrastructure, and commercial contracts.
Disclaimer: This tool is for informational purposes only and does not constitute legal advice. Consult a qualified solicitor or attorney for contract-specific guidance.
Formula
Total Liquidated Damages = Daily Rate × Number of Delay Days
Example:
- Daily LD rate: £5,000
- Delay: 14 days
- Total LD = £5,000 × 14 = £70,000
What Are Liquidated Damages?
Liquidated damages (LDs) are a pre-agreed sum specified in a contract that one party must pay to another if they fail to meet a contractual obligation — most commonly a completion deadline. The rate is agreed upfront and represents a genuine pre-estimate of the loss the innocent party will suffer.
LDs are common in:
- Construction contracts (JCT, NEC, FIDIC)
- IT and software delivery contracts
- Manufacturing and supply agreements
- Infrastructure and civil engineering projects
FAQs
What is the difference between liquidated damages and a penalty clause?
Liquidated damages must be a genuine pre-estimate of loss — if they are disproportionately high relative to actual loss, courts may treat them as an unenforceable penalty clause. In the UK, the Supreme Court test (Cavendish v Makdessi, 2015) asks whether the clause has a legitimate business interest and is not extravagant or unconscionable.
Can liquidated damages exceed actual losses?
LDs are set at contract signing as an estimate of likely loss. If actual losses turn out to be lower, the claimant still recovers the agreed LD rate — the point of LDs is certainty. However, if a clause is clearly a penalty (excessive rate with no relation to actual loss), it may be struck down by a court.
Are liquidated damages capped?
Many contracts include a cap on total LDs — typically expressed as a percentage of the contract value (e.g., 10% of contract sum). Once the cap is reached, the innocent party cannot recover further LDs even if delays continue, though they may be able to claim general damages for losses beyond the cap in some jurisdictions.
Do liquidated damages apply automatically?
LDs apply when the triggering event (e.g., failure to achieve practical completion by the contract completion date) occurs, unless the contractor has been granted an extension of time. The employer must follow the contract notice requirements to validly levy LDs — failure to do so may bar the claim.
Can I claim both liquidated damages and general damages?
Generally, no — LDs are intended to be the exclusive remedy for the specific breach they cover (e.g., delay). You cannot typically claim LDs for delay and then also claim general delay damages on top. However, you may be able to claim general damages for breaches not covered by the LD clause.