Kia K4 Valuation: 75 used car listings analysed

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How much does the Kia K4 depreciate?

Used Kia K4

A used Kia K4 (2026) model loses about £45 per month in value.


Factors that affect the depreciation of a Kia K4:
- Mileage driven
- Maintenance
- Service history


Depreciation is an important part of calculating the total cost of owning a Kia K4. In addition to the monthly depreciation of £45, you should also factor in fuel costs, road tax, insurance and maintenance (including tyres and car washes) to get the full monthly cost.

How much does a used Kia K4 cost? Prices, ratings and depreciation by model year

How much does a used Kia K4 cost? Prices, ratings and depreciation by model year

Model year

Price range*

Avg. Price

Median Mileage

Depreciation
(12 mth.)

Cars for sale

2025 Kia K4

£24,990 - £33,995£28,669300 miles-< 10

2026 Kia K4

£25,475 - £31,995£27,7892,000 miles-£54068

*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market

The data is based on the cars currently listed on AutoUncle

Comparison of Kia K4 variants and prices

Below you can compare prices and depreciation for the 2 most popular Kia K4 variants. The table is updated daily with data from the market in United Kingdom.

Comparison of Kia K4 variants and prices

Variant

Price range*

Avg. Price

Median Mileage

Depreciation
(12 mth.)

Cars for sale

Kia K4 GT-Line S

£26,500 - £33,535£29,5992,200 miles-£1,58032
💰 The budget choice

Kia K4 GT-Line

£24,990 - £30,250£26,8912,000 miles-£1,44039

*The 'Price range' column shows the prices at the 5th and 95th percentiles of cars in the current market

The data is based on the cars currently listed on AutoUncle

Which variant should you choose?

💰 The budget choice

The GT-Line is the cheapest entry point with an average price of £26,891.

🏆 The most popular

There are the most GT-Line for sale right now (39), which gives you the most options to choose from.

📈 The best value

The GT-Line has held its price stable with minimal loss in value over the past year (-£1,440).

Kia K4 (model year 2026) - Price development for the last 3 months and price projection for the next 6 months (March 2026 - November 2026)

Monthly price data with average prices and price ranges

Month

Average market price

Lowest market price

Highest market price

Calculation method

2026 - March
£29,060
£27,120£31,000
Estimate
2026 - April
£29,260
£27,300£31,240
Estimate
2026 - May
£28,520
£26,880£30,160
Estimate
2026 - July
£27,980
--
Forecast
2026 - August
£27,720
--
Forecast
2026 - September
£27,460
--
Forecast
2026 - October
£27,180
--
Forecast
2026 - November
£26,920
--
Forecast

All estimates and forecasts are based on actual market data

Average Monthly Depreciation

A summary of the past 12 and an estimation of the next 6 months.

Past 12 months

-£540

Next 6 months

-£1,600

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Used Kia K4 by region

Used Kia K4 by transmission

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