Every parent who has shopped at Tesco has wondered whether F&F runs true to size. The honest answer, according to the data, is that F&F is the most average brand we've measured — sitting within 0.4cm of the cross-brand mean at the key comparison height of 112cm. That's not a criticism. For a supermarket brand serving the full UK population, consistently average is exactly what you want.
What the data also shows is that F&F boys and girls sizing diverges meaningfully from age 7 onward — in opposite directions for tops and bottoms — and that F&F doesn't publish hip measurements at all, which limits what parents can verify before buying online.
We verified F&F measurements against official Tesco size charts and ran the same cross-brand simulation we use for every brand in our database. Here's what we found.
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Size recommendations are based on official brand size charts and are provided as a guide only. Fit may vary by item, style, and individual child. Outgrow is not responsible for sizing decisions made based on these recommendations.
Does F&F Run Small? What the Measurements Show
When we compared F&F's waist targets against six other major brands at 110–116cm height, F&F S(5-6Y) came in at 56cm — within 0.4cm of the cross-brand mean of 55.6cm. No other brand in our database sits this close to average. The "does F&F run small" question has a clear answer: no, and it doesn't run big either. It is the most consistently average brand we have measured.
| Brand | Waist at 110–116cm | Vs mean (55.6cm) |
|---|---|---|
| Cat & Jack | 52.7cm | −2.9cm narrower |
| Zara | 55cm | −0.6cm |
| Tesco F&F ⭐ | 56cm | +0.4cm — closest to average |
| Gap Kids | 56cm | +0.4cm |
| Old Navy | 57.2cm | +1.6cm |
The comparison with Zara is striking — two brands at completely different price points and from very different retail backgrounds produce almost identical waist targets at 112cm. A child who fits Zara 116 will almost certainly fit F&F S(5-6Y). That's useful to know when you're deciding between a Tesco shop and a trip to the high street.
Boys and Girls Sizing Diverge From Age 7
At XS and S sizes — roughly ages 3 to 7 — F&F boys and girls measurements are nearly identical. Boys S(5-6Y) waist is 56cm, girls S(5-6Y) is 55.9cm. A difference of 0.1cm is functionally the same garment.
From M (age 7-8) onward the charts split in two directions simultaneously. Boys bottoms run progressively wider in the waist than girls at the same height — by M(9-10Y) boys targets 63.5cm versus girls 61.6cm, a 1.9cm difference. At the same time, girls tops run slightly wider in the chest than boys from M(8-9Y) onward — girls 68.6cm versus boys 67.5cm.
The Missing Hip Data
Tesco F&F does not publish hip measurements for any size in its kids range. The official size charts cover height, chest (tops) and waist (bottoms) — nothing else. For a brand of this scale serving millions of UK families, that's a genuine gap.
In practice this means parents buying F&F bottoms online can verify the waist fit but not the seat or thigh fit. For most children this won't be an issue — F&F's average waist targets suggest sensible overall proportions. But for children whose waist-to-hip ratio sits outside typical, the absence of hip data means there's no published measurement to check against before buying.
One Child, Seven Brands — How F&F Compares
The same child from our cross-brand series: 112cm, 19.5kg, 53.5cm waist, 58.5cm hip. F&F S(5-6Y) gives a clean match — 56cm waist target with the child 2.5cm below, and 4cm of height room to the 116cm ceiling. That translates to approximately 8 months of wear, matching Zara's result exactly despite the very different price points.
| Brand | Size | Waist target | Wear time | Note |
|---|---|---|---|---|
| H&M | No match | 110: 56–58cm | 116: 58–59cm | — | Child too slim for 116 waist floor. |
| Cat & Jack | No match | 52.7cm | — | Child 0.8cm over waist ceiling. |
| Carter's | 5 | 55.5–58.5cm | ~3 months | Fits. Weight approaching limit. |
| Gap Kids | XS (5) | 56cm | ~4 months | Fits. Hip 6.5cm below target — loose. |
| Old Navy | XS (5) | 57.2cm | ~5 months | Fits. Child 3.7cm below target. |
| Tesco F&F | S (5-6Y) | 56cm | ~8 months | Fits. Child 2.5cm below. 4cm height room. |
| Zara | 116 | 55cm | ~8 months | Fits. Child 1.5cm below target. |
Child profile: boy, 112cm / 44in, 19.5kg / 43lbs, 53.5cm waist, 58.5cm hip. Wear time based on Outgrow longevity data.
F&F and Zara producing identical wear time results from very different price points is the most practically useful finding in this table. For the full methodology see our cross-brand sizing research. See also our complete kids clothing size chart comparing 36+ brands side by side.
Tesco F&F Boys Tops Size Chart
All measurements from official Tesco F&F size charts, verified April 2026. Weight data is only published for baby sizes — from 12-18M onward weight is not listed. Boys and girls tops use separate charts from M(8-9Y) onward where girls runs slightly wider in the chest.
| Label | Height (cm) | Chest (cm) | Weight (kg) |
|---|---|---|---|
| Tiny baby | 0–44 | 38.5 | 0–2.25 |
| Newborn | 44–50 | 40.0 | 2.72–3.4 |
| Up to 1M | 50–56 | 41.5 | 3.6–4.5 |
| Up to 3M | 56–62 | 43.0 | 5.2–6.5 |
| 0-6M | 62–68 | 44.5 | 6.4–8.0 |
| 6-9M | 68–74 | 46.0 | 7.2–9.0 |
| 6-12M | 74–80 | 47.5 | 8.8–11.0 |
| 12-18M | 80–86 | 50 | — |
| 18-24M | 86–92 | 52.5 | — |
| 2-3Y | 92–98 | 54 | — |
| XS (3-4Y) | 98–104 | 56 | — |
| XS (4-5Y) | 104–110 | 58 | — |
| S (5-6Y) | 110–116 | 60.5 | — |
| S (6-7Y) | 116–122 | 63 | — |
| M (7-8Y) | 122–128 | 67 | — |
| M (8-9Y) | 128–134 | 67.5 | — |
| M (9-10Y) | 134–140 | 71 | — |
| L (10-11Y) | 140–146 | 74.5 | — |
| L (11-12Y) | 146–152 | 78 | — |
| L (12-13Y) | 152–158 | 82 | — |
| XL (13-14Y) | 158–164 | 86 | — |
| XL (14-15Y) | 164–170 | 89 | — |
| XL (15-16Y) | 170–176 | 91.5 | — |
Tesco F&F Girls Tops Size Chart
Girls tops are nearly identical to boys at XS and S sizes. From M(8-9Y) girls chest runs slightly wider than boys. Note the compressed girls XL range — XL covers only 158–166cm for girls versus 158–176cm for boys.
| Label | Height (cm) | Chest (cm) | Weight (kg) |
|---|---|---|---|
| Tiny baby | 0–44 | 38.5 | 0–2.25 |
| Newborn | 44–50 | 40.0 | 2.72–3.4 |
| Up to 1M | 50–56 | 41.5 | 3.6–4.5 |
| Up to 3M | 56–62 | 43.0 | 5.2–6.5 |
| 0-6M | 62–68 | 44.5 | 6.4–8.0 |
| 6-9M | 68–74 | 46.0 | 7.2–9.0 |
| 6-12M | 74–80 | 47.5 | 8.8–11.0 |
| 12-18M | 80–86 | 50 | — |
| 18-24M | 86–92 | 52.5 | — |
| 2-3Y | 92–98 | 54 | — |
| XS (3-4Y) | 98–104 | 56 | — |
| XS (4-5Y) | 104–110 | 58 | — |
| S (5-6Y) | 110–116 | 60.5 | — |
| S (6-7Y) | 116–122 | 63 | — |
| M (7-8Y) | 122–128 | 67 | — |
| M (8-9Y) | 128–134 | 68.6 | — |
| M (9-10Y) | 134–140 | 71.4 | — |
| L (10-11Y) | 140–146 | 76.2 | — |
| L (11-12Y) | 146–152 | 78.7 | — |
| L (12-13Y) | 152–158 | 83.8 | — |
| XL (13-14Y) | 158–164 | 88.9 | — |
| XL (14-15Y) | 164–166 | 91.4 | — |
Tesco F&F Boys Bottoms Size Chart
| Label | Height (cm) | Waist (cm) | Weight (kg) |
|---|---|---|---|
| Tiny baby | 0–44 | — | 0–2.25 |
| Newborn | 44–50 | — | 2.72–3.4 |
| Up to 1M | 50–56 | — | 3.6–4.5 |
| Up to 3M | 56–62 | — | 5.2–6.5 |
| 0-6M | 62–68 | — | 6.4–8.0 |
| 6-9M | 68–74 | — | 7.2–9.0 |
| 6-12M | 74–80 | — | 8.8–11.0 |
| 12-18M | 80–86 | 49 | — |
| 18-24M | 86–92 | 50.5 | — |
| 2-3Y | 92–98 | 52.5 | — |
| XS (3-4Y) | 98–104 | 54.5 | — |
| XS (4-5Y) | 104–110 | 55 | — |
| S (5-6Y) ⭐ | 110–116 | 56 | — |
| S (6-7Y) | 116–122 | 57 | — |
| M (7-8Y) | 122–128 | 59 | — |
| M (8-9Y) | 128–134 | 61.5 | — |
| M (9-10Y) | 134–140 | 63.5 | — |
| L (10-11Y) | 140–146 | 66 | — |
| L (11-12Y) | 146–152 | 68 | — |
| L (12-13Y) | 152–158 | 71 | — |
| XL (13-14Y) | 158–164 | 75 | — |
| XL (14-15Y) | 164–170 | 77.5 | — |
| XL (15-16Y) | 170–176 | 80 | — |
⭐ S(5-6Y) at 56cm waist is within 0.4cm of the cross-brand mean — the closest of any brand we measured. No hip data published for any size.
Tesco F&F Girls Bottoms Size Chart
Girls bottoms run slightly narrower than boys from M(7-8Y) onward. By M(9-10Y) girls waist is 61.6cm versus boys 63.5cm — a 1.9cm difference at the same height.
| Label | Height (cm) | Waist (cm) | Weight (kg) |
|---|---|---|---|
| Tiny baby | 0–44 | — | 0–2.25 |
| Newborn | 44–50 | — | 2.72–3.4 |
| Up to 1M | 50–56 | — | 3.6–4.5 |
| Up to 3M | 56–62 | — | 5.2–6.5 |
| 0-6M | 62–68 | — | 6.4–8.0 |
| 6-9M | 68–74 | — | 7.2–9.0 |
| 6-12M | 74–80 | — | 8.8–11.0 |
| 12-18M | 80–86 | 48.3 | — |
| 18-24M | 86–92 | 50.5 | — |
| 2-3Y | 92–98 | 52.4 | — |
| XS (3-4Y) | 98–104 | 54.6 | — |
| XS (4-5Y) | 104–110 | 54.9 | — |
| S (5-6Y) | 110–116 | 55.9 | — |
| S (6-7Y) | 116–122 | 57.2 | — |
| M (7-8Y) | 122–128 | 58.1 | — |
| M (8-9Y) | 128–134 | 59.9 | — |
| M (9-10Y) | 134–140 | 61.6 | — |
| L (10-11Y) | 140–146 | 63.5 | — |
| L (11-12Y) | 146–152 | 65.4 | — |
| L (12-13Y) | 152–158 | 67.3 | — |
| XL (13-14Y) | 158–164 | 69.2 | — |
| XL (14-15Y) | 159–165 | 71.8 | — |
| XL (15-16Y) | 160–166 | 74.9 | — |
Tesco F&F Shoe Size Chart
F&F shoes use UK sizing as the primary label with EU equivalents. Boys and girls share the same chart. Measure foot length heel to longest toe while standing. Half sizes are included at UK 4.5, 7.5 and 11.5.
| Label | EU | UK | Foot length (cm) |
|---|---|---|---|
| UK 3 | 19 | 3 | 11.4 |
| UK 4 | 20 | 4 | 12.1 |
| UK 4.5 | 21 | 4.5 | 12.7 |
| UK 5 | 22 | 5 | 13.6 |
| UK 6 | 23 | 6 | 14.2 |
| UK 7 | 24 | 7 | 14.8 |
| UK 7.5 | 25 | 7.5 | 15.4 |
| UK 8 | 26 | 8 | 16.1 |
| UK 9 | 27 | 9 | 16.7 |
| UK 10 | 28 | 10 | 17.3 |
| UK 11 | 29 | 11 | 17.9 |
| UK 11.5 | 30 | 11.5 | 18.5 |
| UK 12 | 31 | 12 | 19.2 |
| UK 13 | 32 | 13 | 19.8 |
| UK 1 | 33 | 1 | 20.0 |
| UK 2 | 34 | 2 | 20.9 |
| UK 2.5 | 35 | 2.5 | 21.3 |
| UK 3 | 36 | 3 | 21.7 |
| UK 4 | 37 | 4 | 22.6 |
| UK 5 | 38 | 5 | 23.4 |
| UK 6 | 39 | 6 | 24.2 |
| UK 6.5 | 40 | 6.5 | 24.8 |
| UK 7 | 41 | 7 | 25.1 |
| UK 8 | 42 | 8 | 25.9 |
Frequently Asked Questions
Does Tesco F&F run small?
No — Tesco F&F sits closer to the cross-brand average than any other brand we measured. At 110–116cm height, F&F’s waist target of 56cm is within 0.4cm of the mean across seven major kids clothing brands. F&F neither runs big nor small.
How does Tesco F&F compare to Zara for kids sizing?
F&F and Zara produce almost identical results for our reference child at 112cm — both give approximately 8 months of wear with waist targets of 56cm and 55cm respectively. Despite very different price points and retail backgrounds, the two brands are effectively interchangeable for sizing purposes at this height.
What is the difference between F&F boys and girls sizing?
At XS and S sizes the measurements are nearly identical — within 0.1cm on waist and chest. From M (age 7-8) onward they diverge: boys bottoms run wider in the waist, while girls tops run slightly wider in the chest. Always use the correct chart from age 7 onward.
Does F&F publish hip measurements?
No — Tesco F&F does not publish hip measurements for any size in its kids range. Parents buying online can verify the waist fit but not the seat or thigh fit from published data alone.
What size is a 112cm child in Tesco F&F?
A 112cm child fits F&F S(5-6Y), covering 110–116cm with a 56cm waist target. With 4cm of height room remaining at 112cm, expect approximately 8 months of wear before outgrowing the size.
Does Tesco F&F have extended sizing?
Tesco F&F does not offer dedicated Slim, Husky or Plus fit options. The standard range covers tiny baby through age 15-16 for boys and 15-16 for girls, though the girls XL range is more compressed — covering 158–166cm versus boys 158–176cm.