TT buying rate, CHF

Exchange rates. Rupees, daily.

Values

Latest · 15 Oct 2026Rs 391.30+Rs 1.84 on 14 Oct 2026

Period	Rupees	Change, Rs
15 Oct 2026	391.30	+1.84
14 Oct 2026	389.46	+0.54
13 Oct 2026	388.92	−1.51
12 Oct 2026	390.43	+0.11
9 Oct 2026	390.32	+1.04
8 Oct 2026	389.28	+0.43
7 Oct 2026	388.85	−0.40
6 Oct 2026	389.25	−0.73
5 Oct 2026	389.98	+0.44
2 Oct 2026	389.54	+2.38
1 Oct 2026	387.16	−1.27
30 Sep 2026	388.43	−0.85

Data source: Central Bank of Sri Lanka, CBSL exchange rate lookups

Macro Lab · LK.EXT.FX.CHF.BUY.D · CC BY 4.0

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About this series

Source Central Bank of Sri Lanka, compiled by Macro Lab
Unit Rupees
Date range 3 Jan 2005 – 15 Oct 2026
Last checked 15 Oct 2026

Checks: 24 recorded for this series, listed below.

Details

Name in the warehouse: TT buying rate, CHF
Read from: CBSL exchange rate lookups (Central Bank of Sri Lanka)
Source page: https://www.cbsl.gov.lk/en/rates-and-indicators/exchange-rates/daily-buy-and-sell-exchange-rates
Notes: CBSL Data Library (wizard export) From 2016-10-06, days the Data Library does not have are taken from CBSL's exchange rate lookup pages (158 so far). On the 3197 days both have, 3178 agree.

Source documents

No file is recorded for these values.

Vintages

9 vintages, the latest published 15 Oct 2026.

Related series

Republished by: LK.EXT.FX_DAILY_TT.CHF.BUY.D

Source discrepancies

What the warehouse found when it checked this series: the same figure from two agencies, splice overlaps, published rates against ones recalculated from the index, and outliers.

Error in the source6 Oct 2015
This series reads 141.3; the same figure from the other source reads 147.3. Compared with LK.EXT.FX_DAILY_TT.CHF.BUY.D.

Two agencies: 147.26 and 141.26, difference 6.
LK.EXT.FX_DAILY_TT.CHF.BUY.D: IF_Buying_Selling file vs the Data Library
LK.EXT.FX_DAILY_TT.CHF.BUY.D: value 147.2600 vs Data Library 141.2600. Whole-day anomaly in the source file: every daily-TT currency (buy and sell) jumps on this one day while every neighbouring day matches the Data Library exactly (e.g. USD/BUY 144.53 here vs 138.9x the day before and after, in both the file and the Library) - re-verified series by series. A single bad row in IF_Buying_Selling_Exchange_Rates...xlsx, not a parsing issue.
Error in the source1 Oct 2018
This series reads 169; the same figure from the other source reads 179.2. Compared with LK.EXT.FX_DAILY_TT.CHF.BUY.D.

Two agencies: 179.194 and 169.01, difference 10.184.
LK.EXT.FX_DAILY_TT.CHF.BUY.D: IF_Buying_Selling file vs the Data Library
LK.EXT.FX_DAILY_TT.CHF.BUY.D: value 179.1943 vs Data Library 169.0100. USD/BUY 180.08 here vs ~167.0 the day before and after). A single bad row in the source file.
Rounding26 Apr 2018
This series reads 157; the same figure from the other source reads 157.1. Compared with LK.EXT.FX_DAILY_TT.CHF.BUY.D.

Two agencies: 157.09 and 157.03, difference 0.06.
LK.EXT.FX_DAILY_TT.CHF.BUY.D: IF_Buying_Selling file vs the Data Library
LK.EXT.FX_DAILY_TT.CHF.BUY.D: value 157.0904 vs Data Library 157.0300. Every currency differs from the Data Library by under 0.2 LKR on this date - the file records 4 decimal places (e.g. USD/BUY 155.5247) where the Library's copy has 2 (155.43); a precision/rounding difference between two CBSL publications of the same TT rate, not an error.
Disagrees with itself7 May 2010
Checked against another source.

Successor diff: 100.82 and 101.01, difference −0.19.
CBSL's exchange rate lookup pages against the Data Library
CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.
Disagrees with itself15 Jun 2010
Checked against another source.

Successor diff: 98.35 and 98.44, difference −0.09.
CBSL's exchange rate lookup pages against the Data Library
CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.
Disagrees with itself19 Jul 2010
Checked against another source.

Successor diff: 108.95 and 106.33, difference 2.62.
CBSL's exchange rate lookup pages against the Data Library
CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.
Disagrees with itself22 Nov 2010
Checked against another source.

Successor diff: 111.3 and 111.28, difference 0.02.
CBSL's exchange rate lookup pages against the Data Library
CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.
Disagrees with itself23 Nov 2011
Checked against another source.

Successor diff: 122.4 and 122.58, difference −0.18.
CBSL's exchange rate lookup pages against the Data Library
CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.
Disagrees with itself18 Jan 2012
Checked against another source.

Successor diff: 118.58 and 118.57, difference 0.01.
CBSL's exchange rate lookup pages against the Data Library
CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.
Disagrees with itself25 Jan 2012
Checked against another source.

Successor diff: 120.71 and 121.56, difference −0.85.
CBSL's exchange rate lookup pages against the Data Library
CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.
Disagrees with itself9 Feb 2012
Checked against another source.

Successor diff: 123.01 and 123.2, difference −0.19.
CBSL's exchange rate lookup pages against the Data Library
CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.
Disagrees with itself2 Oct 2013
Checked against another source.

Successor diff: 142.27 and 142.26, difference 0.01.
CBSL's exchange rate lookup pages against the Data Library
CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.
Disagrees with itself23 Dec 2013
Checked against another source.

Successor diff: 143.24 and 143.08, difference 0.16.
CBSL's exchange rate lookup pages against the Data Library
CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.
Disagrees with itself26 Feb 2014
Checked against another source.

Successor diff: 145.06 and 145.05, difference 0.01.
CBSL's exchange rate lookup pages against the Data Library
CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.
Disagrees with itself21 Jan 2015
Checked against another source.

Successor diff: 149.3 and 149.33, difference −0.03.
CBSL's exchange rate lookup pages against the Data Library
CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.
Disagrees with itself29 Jun 2015
Checked against another source.

Successor diff: 139.74 and 139.73, difference 0.01.
CBSL's exchange rate lookup pages against the Data Library
CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.
Disagrees with itself21 Jul 2015
Checked against another source.

Successor diff: 136.19 and 136.35, difference −0.16.
CBSL's exchange rate lookup pages against the Data Library
CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.
Disagrees with itself19 Oct 2015
Checked against another source.

Successor diff: 144.22 and 144.21, difference 0.01.
CBSL's exchange rate lookup pages against the Data Library
CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.
Disagrees with itself16 Dec 2015
Checked against another source.

Successor diff: 141.88 and 142.95, difference −1.07.
CBSL's exchange rate lookup pages against the Data Library
CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.
Disagrees with itself29 Feb 2016
Checked against another source.

Successor diff: 142.09 and 143.24, difference −1.15.
CBSL's exchange rate lookup pages against the Data Library
CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.
Disagrees with itself27 Dec 2016
Checked against another source.

Successor diff: 142.71 and 142.7, difference 0.01.
CBSL's exchange rate lookup pages against the Data Library
CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.
Disagrees with itself26 Apr 2018
Checked against another source.

Successor diff: 157.09 and 157.03, difference 0.06.
CBSL's exchange rate lookup pages against the Data Library
CBSL's exchange rate lookup and the Data Library disagree on 13-18 days per currency between 2010 and April 2018, by a few cents to a few rupees (USD sell 2011-02-28: 91.67 in the lookup, 111.67 in the library). Most look like slips on one side or the other; which side is right is not established for each day.
For information
This series and the same figure from another source differ over the period they share. Compared with LK.EXT.FX_MONTHLY.CHF.EOM.M.

Two agencies: , difference −0.734.
CHF: IF_End_of_the_Month file vs the Data Library's daily TT mid on the last business day on record each month. 53 of 261 months differ by more than 0.5 LKR, mean diff -0.734, worst -14.197 in 2022-04.
CHF: IF_End_of_the_Month_Exchange_Rates.xlsx (CBSL's IMF/IFS reporting rate) vs the Data Library's daily commercial-bank TT mid on the last business day on record each month.
For information
This series and the same figure from another source differ over the period they share. Compared with LK.EXT.FX_MONTHLY.CHF.AVG.M.

Two agencies: , difference −1.444.
CHF: IF_Monthly_Average file vs mean of the Data Library's daily TT mid, by calendar month. 37 of 261 months differ by more than 0.5 LKR, mean diff -1.444, worst -7.804 in 2022-04.
CHF: IF_Monthly_Average_Exchange_Rates.xlsx (CBSL's IMF/IFS reporting rate) vs the mean of the Data Library's daily commercial-bank TT mid over the same calendar month. Reported, not merged.

Errors and rounding first. 21 more checks.