Estimate Royal Mail 1st Class, 2nd Class, Tracked 24 and Tracked 48 by packed weight and item format, using official UK retail rates.
Choose the service, the packed item's format and its packed weight to compare standard and tracked UK postage. The format matters because Royal Mail prices letters and parcels differently even when they weigh the same.
Scope: Choose the packed item's actual format as well as its weight. Rates shown are Royal Mail retail prices; business-account discounts, collection fees and optional extras are not included. The calculator switches to rates effective 5 October 2026 on that date (UK time).
Shipping cost calculator
Static tables · 2026
Retail reference rates, not account-specific live quotes. Canada Post parcels are zone-priced; Australia Post own-packaging postage varies by destination and cubic weight.
UK-wide retail prices. Tracked includes VAT; standard Class rates are VAT-exempt.
Choose by packed dimensions as well as weight. Large letters are up to 750 g for standard Class and 1 kg for Tracked.
Converted to grams for the rate tables.
Result
Royal Mail 1st Class
Royal Mail 1st Class
£3.60
Large letter · ≤ 500 g
Royal Mail standard 1st Class, current through Oct 4, 2026. Price is exempt from VAT and includes compensation up to £20. Check the packed item's format and dimensions.
Source: Royal Mail Our Prices · Apr 7, 2026
Estimates only — always confirm with your label provider.
Inputs restore automatically for an hour · this device only, nothing is sent anywhere.
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Compare standard 1st or 2nd Class with Tracked 24 or Tracked 48.
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Use the item's actual dimensions to choose letter, large letter, small parcel or medium parcel. Format changes the rate.
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Include the packaging and label. Royal Mail rounds the packed weight up to the next published band.
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Insurance, compensation upgrades and business discounts are not part of the static retail result.
1st Class is the faster standard service; 2nd Class is the lower-cost option when delivery speed is less important. The exact price depends on format and weight.
Tracked 24 is designed for delivery the next working day, but it is not an unconditional guarantee. Use the service result as a postage estimate and check Royal Mail's current terms before promising a delivery date.
Royal Mail's published 1st and 2nd Class retail rates are exempt from VAT. Tracked 24 and Tracked 48 retail prices include VAT at 20%.
Royal Mail prices depend on both dimensions and packed weight. A large letter is limited to 35.3 × 25 × 2.5 cm; small and medium parcels have different size limits and rates. The calculator cannot infer dimensions from weight.
Enter the final packed weight, including the envelope, box, padding and label. A small change can move the item into the next Royal Mail weight band.
Compare every supported carrier, service and weight tier.
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Ground Advantage and Priority Mail rates by weight and zone.
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1st, 2nd, Tracked 24 and Tracked 48 by weight.
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Cross-border postage tables for letters and parcels.
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Rates are retail list rates from the linked carrier tables. For a seller-specific estimate, pair this result with the ROAS and ACoS calculator or the profit margin calculator before setting your shipping price.